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Theory Division

Theoretical Quantum Dynamics and Quantum Electrodynamics

 

www.mpg.de

Publications - Theory Division Christoph H. Keitel


Publications in refereed journals (click on the title to access the paper or contact us for a reprint):

"Spectral narrowing of x-ray pulses for precision spectroscopy with nuclear resonances"
K. P. Heeg, A. Kaldun, C. Strohm, P. Reiser, C. Ott, R. Subramanian, D. Lentrodt, J. Haber, H. Wille, S. Goerttler, R. Rüffer, C. H. Keitel, R. Röhlsberger, T. Pfeifer, J. Evers, Science 357, 375-378 (2017).

"Laser-pulse-shape control of seeded QED cascades"
M. Tamburini, A. Di Piazza, C. H. Keitel, Sci. Rep. 7, 5694 (2017).

"Experimental Evidence for Quantum Tunneling Time"
N. Camus, E. Yakaboylu, L. Fechner, M. Klaiber, M. Laux, Y. Mi, K. Z. Hatsagortsyan, T. Pfeifer, C. H. Keitel, R. Moshammer, Phys. Rev. Lett. 119, 023201 (2017).

"Extraction of the electron mass from g-factor measurements on light hydrogenlike ions."
J. Zatorski, B. Sikora, S. G. Karshenboim, S. Sturm, F. Köhler, K. Blaum, C. H. Keitel, Z. Harman, Physical Review A 96, 012502 (2017).

"Plasma high-order-harmonic generation from ultraintense laser pulses"
S. Tang, N. Kumar, C. H. Keitel, Phys. Rev. E 95, 051201(R) (2017).

"Deterministic strong-field quantum control"
S. M. Cavaletto, Z. Harman, T. Pfeifer, C. H. Keitel, Physical Review A 95, 043413 (2017).

"Spin-one-half particles in strong electromagnetic fields: Spin effects and radiation reaction"
M. Wen, C. H. Keitel, H. Bauke, Physical Review A 95, 042102 (2017).

"Determination of Plasma Screening Effects for Thermonuclear Reactions in Laser-generated Plasmas"
Y. Wu, A. Pálffy, The Astrophysical Journal 838, 55 (2017).

"First-order strong-field QED processes in a tightly focused laser beam"
A. Di Piazza, Physical Review A 95, 032121 (2017).

"Internal conversion from excited electronic states of 229Th ions"
P. V. Bilous, G. A. Kazakov, I. D. Moore, T. Schumm, A. Pálffy, Physical Review A 95, 032503 (2017).

"Limits of Strong Field Rescattering in the Relativistic Regime"
M. Klaiber, K. Z. Hatsagortsyan, J. Wu, S. S. Luo, P. Grugan, B. C. Walker, Phys. Rev. Lett. 118, 093001 (2017).

"Fast phonon dynamics of a nanomechanical oscillator due to cooperative effects"
V. Ceban, P. Longo, M. A. Macovei, Physical Review A 95, 023806 (2017).

"Strong-field ionization via a high-order Coulomb-corrected strong-field approximation"
M. Klaiber, J. Danek, E. Yakaboylu, K. Z. Hatsagortsyan, C. H. Keitel, Physical Review A 95, 023403 (2017).

"Observation and quantification of the quantum dynamics of a strongfield excited multi-level system"
Z. Liu, Q. Wang, J. Ding, S. M. Cavaletto, T. Pfeifer, B. Hu, Sci. Rep. 7, 39993 (2017).

"X-ray quantum-eraser setup for time-energy complementarity"
A. Pálffy, J. Gunst, Physical Review A 94, 063849 (2016).

"Nonlinear Breit-Wheeler Pair Production in a Tightly Focused Laser Beam"
A. Di Piazza, Phys. Rev. Lett. 117, 213201 (2016).

"Minicharged particles search by strong laser pulse-induced vacuum polarization effects"
S. Villalba-Chávez, S. Meuren, C. Müller, Physics Letters B 763, 445-453 (2016).

"Crossover from tunneling to multiphoton ionization of atoms"
M. Klaiber, J. Briggs, Physical Review A 94, 053405 (2016).

"Investigation of classical radiation reaction with aligned crystals"
A. Di Piazza, T. N. Wistisen, U. I. Uggerhøj, Physics Letters B 765, 1-5 (2016).

"X-ray-generated heralded macroscopical quantum entanglement of two nuclear ensembles"
W. Liao, C. H. Keitel, A. Pálffy, Sci. Rep. 6, 33361 (2016).

"Parity violation effects in the Josephson junction of a p-wave superconductor"
N. Belov, Z. Harman, Phys. Lett. A 380, 3690-3695 (2016).

"Nonlocal nonlinear response of thermal Rydberg atoms and modulational instability in an absorptive nonlinear medium"
L. Zhang, J. Evers, Physical Review A 94, 033402 (2016).

"Path to AWAKE: Evolution of the concept"
A. Caldwell, E. Adli, L. Amorim, R. Apsimon, T. Argyropoulos, R. Assmann, A. -. Bachmann, E. Batsch, J. Bauche, V. K. B. Olsen, M. Bernardini, R. Bingham, B. Biskup, T. Bohl, C. Bracco, P. N. Burrows, G. Burt, B. Buttenschoen, A. Butterworth, M. Cascella, S. Chattopadhyay, E. Chevallay, S. Cipiccia, H. Damerau, L. Deacon, R. Dirksen, S. Doebert, U. Dorda, E. Eisen, J. Farmer, S. Fartoukh, V. Fedosseev, E. Feldbaumer, R. Fiorito, R. Fonseca, F. Friebel, G. Geschonke, B. Goddard, A. A. Gorn, O. Grulke, E. Gschwendtner, J. Hansen, C. Hessler, S. Hillenbrand, W. Hofle, J. Holloway, C. Huang, M. Huether, D. Jaroszynski, L. Jensen, S. Jolly, A. Joulaei, M. Kasim, F. Keeble, R. Kersevan, N. Kumar, Y. Li, S. Liu, N. Lopes, K. V. Lotov, W. Lu, J. Machacek, S. Mandry, I. Martin, R. Martorelli, M. Martyanov, S. Mazzoni, M. Meddahi, L. Merminga, O. Mete, V. A. Minakov, J. Mitchell, J. Moody, A. -. Mueller, Z. Najmudin, T. C. Q. Noakes, P. Norreys, J. Osterhoff, E. Oez, A. Pardons, K. Pepitone, A. Petrenko, G. Plyushchev, J. Pozimski, A. Pukhov, O. Reimann, K. Rieger, S. Roesler, H. Ruhl, T. Rusnak, E. Salveter, N. Savard, J. Schmidt, H. von der Schmitt, A. Seryi, E. Shaposhnikova, Z. Sheng, R. Sherwood, L. Silva, F. Simon, L. Soby, A. P. Sosedkin, R. I. Spitsyn, T. Tajima, R. Tarkeshian, H. Timko, R. Trines, T. Tueckmantel, P. V. Tuev, M. Turner, E. Velotti, V. Verzilov, J. Vieira, H. Vincke, Y. Wei, C. P. Welsch, M. Wing, G. Xia, V. Yakimenko, H. Zhang, F. Zimmermann, Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment 829, 3-16 (2016).

"Identifying the Stern-Gerlach force of classical electron dynamics"
M. Wen, H. Bauke, C. H. Keitel, Sci. Rep. 6, 31624 (2016).

"Virtual-detector approach to tunnel ionization and tunneling times"
N. Teeny, C. H. Keitel, H. Bauke, Physical Review A 94, 022104 (2016).

"Weighted difference of g factors of light Li-like and H-like ions for an improved determination of the fine-structure constant"
V. A. Yerokhin, E. Berseneva, Z. Harman, I. Tupitsyn, C. H. Keitel, Physical Review A 94, 022502 (2016).

"Multi-pair states in electron-positron pair creation"
A. Woellert, H. Bauke, C. H. Keitel, Physics Letters B 760, 552-557 (2016).

"Stopping Narrow-Band X-Ray Pulses in Nuclear Media"
X. Kong, A. Pálffy, Phys. Rev. Lett. 116, 197402 (2016).

"Nonlinear single Compton scattering of an electron wave packet"
A. Angioi, K. F. Mackenroth, A. Di Piazza, Physical Review A 93, 052102 (2016).

"Logical operations with single x-ray photons via dynamically-controlled nuclear resonances"
J. Gunst, C. H. Keitel, A. Pálffy, Sci. Rep. 6, 25136 (2016).

"Cavity quantum interferences with three-level atoms"
V. Ceban, M. A. Macovei, J. Opt. Soc. Am. B-Opt. Phys. 33, 942-946 (2016).

"Semiclassical picture for electron-positron photoproduction in strong laser fields"
S. Meuren, C. H. Keitel, A. Di Piazza, Phys. Rev. D. 93, 085028 (2016).

"X-ray fluorescence spectrum of highly charged Fe ions driven by strong free-electron-laser fields"
N. S. Oreshkina, S. M. Cavaletto, C. H. Keitel, Z. Harman, Journal of Physics B: Atomic, Molecular and Optical Physics 49, 094003 (2016).

"Tailoring superradiance to design artificial quantum systems"
P. Longo, C. H. Keitel, J. Evers, Sci. Rep. 6, 23628 (2016).

"Rate equations for nitrogen molecules in ultrashort and intense x-ray pulses"
J. Liu, N. Berrah, L. S. Cederbaum, J. P. Cryan, J. M. Glownia, K. J. Schafer, C. Buth, Journal of Physics B: Atomic, Molecular and Optical Physics 49, 075602 (2016).

"g Factor of Light Ions for an Improved Determination of the Fine-Structure Constant"
V. A. Yerokhin, E. Berseneva, Z. Harman, I. Tupitsyn, C. H. Keitel, Phys. Rev. Lett. 116, 100801 (2016).

"Fields of an ultrashort tightly focused laser pulse"
J. Li, Y. I. Salamin, K. Z. Hatsagortsyan, C. H. Keitel, J. Opt. Soc. Am. B-Opt. Phys. 33, 405-411 (2016).

"Ionization Time and Exit Momentum in Strong-Field Tunnel Ionization"
N. Teeny, E. Yakaboylu, H. Bauke, C. H. Keitel, Phys. Rev. Lett. 116, 063003 (2016).

"Pair creation in heavy ion channeling"
N. Belov, Z. Harman, Physics Letters B 755, 150-154 (2016).

"Bosonic pair creation and the Schiff-Snyder-Weinberg effect"
Q. Z. Lv, H. Bauke, Q. Su, C. H. Keitel, R. Grobe, Physical Review A 93, 012119 (2016).

"Molecular wave-packet dynamics on laser-controlled transition states"
A. Fischer, M. Gärttner, P. Cörlin, A. G. Sperl, M. Schönwald, T. Mizuno, G. Sansone, A. Senftleben, J. Ullrich, B. Feuerstein, T. Pfeifer, R. Moshammer, Physical Review A 93, 012507 (2016).

"Regularization of ultraviolet divergence for a particle interacting with a scalar quantum field"
O. D. Skoromnik, I. D. Feranchuk, D. V. Lu, C. H. Keitel, Phys. Rev. D. 92, 125019 (2015).

"Direct and secondary nuclear excitation with x-ray free-electron lasers"
Y. Wu, J. Gunst, N. Kumar, C. H. Keitel, A. Pálffy, Physics of Plasmas 22, 112706 (2015).

"Attosecond Gamma-Ray Pulses via Nonlinear Compton Scattering in the Radiation-Dominated Regime"
J. Li, K. Z. Hatsagortsyan, B. J. Galow, C. H. Keitel, Phys. Rev. Lett. 115, 204801 (2015).

"Electromagnetically-induced-transparency–like phenomenon with resonant meta-atoms in a cavity"
Y. Hu, W. Liu, S. Yong, S. Xi, J. Jun, Y. Yaping, Z. Shiyao, J. Evers, C. Hong, Physical Review A 92, 053824 (2015).

"X-Ray physics: Straight outta Compton"
A. Pálffy, Nat. Phys. 11, 893-894 (2015).

"Influence of ion movement in a particle trap on the bound electron g factor"
N. Michel, J. Zatorski, C. H. Keitel, Physical Review A 92, 052509 (2015).

"Laser-nucleus interactions: The quasi-adiabatic regime"
A. Pálffy, O. Buss, A. Hoefer, H. A. Weidenmüller, Phys. Rev. C 92, 044619 (2015).

"Spin effects in Kapitza-Dirac scattering at light with elliptical polarization"
R. Erhard, H. Bauke, Physical Review A 92, 042123 (2015).

"Physical background for parameters of the quantum Rabi model"
I. D. Feranchuk, A. V. Leonov, O. D. Skoromnik, Journal of Physics A: Mathematical and Theoretical 49, 454001 (2015).

"High-order harmonic generation with resonant core excitation by ultraintense X-rays"
C. Buth, EPJ D 69, 234 (2015).

"Pulse splitting in light propagation through N-type atomic media due to an interplay of Kerr nonlinearity and group-velocity dispersion"
R. K. V., T. N. Dey, J. Evers, M. Kiffner, Physical Review A 92, 023840 (2015).

"Momentum partition between constituents of exotic atoms during laser-induced tunneling ionization"
D. Cricchio, E. Fiordilino, K. Z. Hatsagortsyan, Physical Review A 92, 023408 (2015).

"Overview of laser-driven generation of electron-positron beams"
G. Sarri, M. E. Dieckmann, I. Kourakis, A. Di Piazza, B. Reville, C. H. Keitel, M. Zepf, Journal of Plasma Physics 81, 455810401 (2015).

"Population inversion in two-level systems possessing permanent dipoles"
M. A. Macovei, M. Mishra, C. H. Keitel, Physical Review A 92, 013846 (2015).

"Phase reconstruction of strong-field excited systems by transient-absorption spectroscopy"
Z. Liu, S. M. Cavaletto, C. Ott, K. Meyer, Y. Mi, Z. Harman, C. H. Keitel, T. Pfeifer, Phys. Rev. Lett. 115, 033003 (2015).

"Heralded W-state preparation using laser-designed superatoms"
M. Gärttner, Physical Review A 92, 013629 (2015).

"Feasibility of electron cyclotron autoresonance acceleration by a short terahertz pulse"
Y. I. Salamin, J. Li, B. J. Galow, C. H. Keitel, Opt Express 23, 17560-17567 (2015).

"Nonlinear neutrino-photon interactions inside strong laser pulses"
S. Meuren, C. H. Keitel, A. Di Piazza, Journal of High Energy Physics 2015, 127 (2015).

"Spin polarized electron-positron pair production via elliptical polarized laser fields"
A. Woellert, H. Bauke, C. H. Keitel, Phys. Rev. D. 91, 125026 (2015).

"Above-threshold ionization with highly charged ions in super-strong laser fields: III. Spin effects and its dependence on laser polarization"
E. Yakaboylu, M. Klaiber, K. Z. Hatsagortsyan, Physical Review A 91, 063407 (2015).

"Collective effects between multiple nuclear ensembles in an x-ray cavity-QED setup"
K. P. Heeg, J. Evers, Physical Review A 91, 063803 (2015).

"Spectroscopy of berylliumlike xenon ions using dielectronic recombination"
D. Bernhardt, C. Brandau, Z. Harman, C. Kozhuharov, S. Böhm, F. Bosch, S. Fritzsche, J. Jacobi, S. Kieslich, H. Knopp, F. Nolden, W. Shi, Z. Stachura, M. Steck, T. Stohlker, S. Schippers, A. Müller, Journal of Physics B: Atomic, Molecular and Optical Physics 48, 144008 (2015).

"Identifications of 5s1/2?5p3/2 and 5s2?5s5p EUV transitions of promethium-like Pt, Ir, Os and Re"
H. Bekker, O. O. Versolato, A. Windberger, N. S. Oreshkina, R. Schupp, T. M. Baumann, Z. Harman, C. H. Keitel, P. O. Schmidt, J. Ullrich, J. R. Crespo López-Urrutia, Journal of Physics B 48, 144018 (2015).

"Interferometric phase detection at x-ray energies via Fano resonance control"
K. P. Heeg, C. Ott, D. Schumacher, H. Wille, R. Röhlsberger, T. Pfeifer, J. Evers, Phys. Rev. Lett. 114, 207401 (2015).

"Tunable Subluminal Propagation of Narrow-band X-Ray Pulses"
K. P. Heeg, J. Haber, D. Schumacher, L. Bocklage, H. Wille, K. S. Schulze, R. Loetzsch, I. Uschmann, G. G. Paulus, R. Rüffer, R. Röhlsberger, J. Evers, Phys. Rev. Lett. 114, 203601 (2015).

"Temporal dynamics of stimulated emission with applications in nuclear quantum optics"
A. J. Reichegger, J. Evers, Physical Review A 91, 053810 (2015).

"Spin dynamics in relativistic light-matter interaction"
H. Bauke, S. Ahrens, C. H. Keitel, R. Grobe, Proceedings of SPIE 9515, 95150L (2015).

"Generation of neutral and high-density electron–positron pair plasmas in the laboratory"
G. Sarri, K. Poder, J. M. Cole, W. Schumaker, A. Di Piazza, B. Reville, T. Dzelzainis, D. Doria, L. Gizzi, G. Grittani, S. Kar, C. H. Keitel, K. Krushelnick, S. Kuschel, S. P. D. Mangles, Z. Najmudin, N. Shukla, L. O. Sliva, D. Symes, A. G. R. Thomas, M. Vargas, J. Vieira, M. Zepf, Nat. Commun. 6, 6747 (2015).

"Identification of the Predicted 5s?4f Level Crossing Optical Lines with Applications to Metrology and Searches for the Variation of Fundamental Constants"
A. Windberger, J. R. Crespo López-Urrutia, H. Bekker, N. S. Oreshkina, J. C. Berengut, V. Bock, A. Borschevsky, V. A. Dzuba, E. Eliav, Z. Harman, U. Kaldor, S. Kaul, U. I. Safronova, V. V. Flambaum, C. H. Keitel, P. O. Schmidt, J. Ullrich, O. O. Versolato, Phys. Rev. Lett. 114, 150801 (2015).

"Analytical tools for investigating strong-field QED processes in tightly focused laser fields"
A. Di Piazza, Physical Review A 91, 042118 (2015).

"High-Energy Recollision Processes of Laser-Generated Electron-Positron Pairs"
S. Meuren, K. Z. Hatsagortsyan, C. H. Keitel, A. Di Piazza, Phys. Rev. Lett. 114, 143201 (2015).

"Relativistic tunneling picture of electron-positron pair creation"
A. Woellert, M. Klaiber, H. Bauke, C. H. Keitel, Phys. Rev. D. 91, 065022 (2015).

"Gravitational and relativistic deflection of X-ray superradiance"
W. Liao, S. Ahrens, Nature Photonics 9, 169-173 (2015).

"Tunneling Dynamics in Multiphoton Ionization and Attoclock Calibration"
M. Klaiber, K. Z. Hatsagortsyan, C. H. Keitel, Phys. Rev. Lett. 114, 083001 (2015).

"Ion Acceleration by Short Chirped Laser Pulses"
J. Li, B. J. Galow, C. H. Keitel, Z. Harman, Applied Sciences 5, 36-47 (2015).

"Survival of Rydberg atoms in intense laser fields and the role of nondipole effects"
M. Klaiber, D. Dimitrovski, Physical Review A: Atomic, Molecular, and Optical Physics 91, 023401 (2015).

"Polarization-operator approach to pair creation in short laser pulses"
S. Meuren, K. Z. Hatsagortsyan, C. H. Keitel, A. Di Piazza, Phys. Rev. D. 91, 013009 (2015).

"High-frequency light reflector via low-frequency light control"
D. Wang, S. Zhu, J. Evers, M. O. Scully, Physical Review A 91, 011801 (2015).

"Electron-ion collision spectroscopy: Lithium-like xenon ions"
D. Bernhardt, C. Brandau, Z. Harman, C. Kozhuharov, S. Böhm, F. Bosch, S. Fritzsche, J. Jacobi, S. Kieslich, H. Knopp, F. Nolden, W. Shi, Z. Stachura, M. Steck, T. Stohlker, S. Schippers, A. Müller, Physical Review A 91, 012710 (2015).

"Probing few-excitation eigenstates of interacting atoms on a lattice by observing their collective light emission in the far field"
P. Longo, J. Evers, Physical Review A: Atomic, Molecular, and Optical Physics 90, 063834 (2014).

"State-selective high-energy excitation of nuclei by resonant positron annihilation"
N. Belov, Z. Harman, Physics Letters B 741, 61-64 (2014).

"Spin-asymmetric laser-driven relativistic tunneling from ? states"
M. Klaiber, K. Z. Hatsagortsyan, Physical Review A: Atomic, Molecular, and Optical Physics 90, 063416 (2014).

"Collective Excitation of Rydberg-Atom Ensembles beyond the Superatom Model"
M. Gärttner, S. Whitlock, D. W. . Schönleber, J. Evers, Phys. Rev. Lett. 113, 233002 (2014).

"Krylov subspace methods for the Dirac equation"
R. Beerwerth, H. Bauke, Computer Physics Communications 188, 189-197 (2014).

"Ultrahigh Brilliance Multi-MeV ?-Ray Beams from Nonlinear Relativistic Thomson Scattering"
G. Sarri, D. J. Corvan, W. Schumaker, J. M. Cole, A. Di Piazza, H. Ahmed, C. Harvey, C. H. Keitel, K. Krushelnick, S. P. D. Mangles, Z. Najmudin, D. Symes, A. G. R. Thomas, M. Yeung, Z. Zhao, M. Zepf, Phys. Rev. Lett. 113, 224801 (2014).

"Particle production reactions in laser-boosted lepton collisions"
S. Müller, C. H. Keitel, C. Müller, Phys. Rev. D. 90, 094008 (2014).

"Contributions of dielectronic, trielectronic, and metastable channels to the resonant intershell recombination of highly charged silicon ions"
T. M. Baumann, Z. Harman, J. Stark, C. Beilmann, G. Liang, P. H. Mokler, J. Ullrich, J. R. Crespo López-Urrutia, Phys. Rev. A 90, 052704 (2014).

"Electron-spin dynamics in elliptically polarized light waves"
H. Bauke, S. Ahrens, R. Grobe, Phys. Rev. A 90, 052101 (2014).

"Laser plasma acceleration of electrons with multi-PW laser beams in the frame of CILEX"
B. Cros, B. Paradkar, X. Davoine, A. Chancéd, F. Desforges, S. Dobosz-Dufrénoy, N. Delerue, J. Jua, T. Audeta, G. Maynard, M. Lobet, L. Gremillet, P. Morac, J. Schwindling, O. Delferrière, C. Bruni, C. Rimbault, T. Vinatier, A. Di Piazza, M. Grech, C. Riconda, J. Marquèi, A. Beck, A. Speckag, P. Martin, P. Monot, D. Normand, F. Mathieu, P. Audebert, F. Amiranoff, Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment 740, 27-33 (2014).

"Cavity output field suppression due to interference effects"
V. Ciornea, M. A. Macovei, Phys. Rev. A 90, 043837 (2014).

"Quantum dynamics of a two-level emitter with modulated transition frequency"
M. A. Macovei, C. H. Keitel, Phys. Rev. A 90, 043838 (2014).

"Electron-spin dynamics induced by photon spins"
S. Ahrens, H. Bauke, C. H. Keitel, R. Grobe, New Journal of Physics 16, 103028 (2014).

"Astrophysical line diagnosis requires non-linear dynamical atomic modeling"
N. S. Oreshkina, S. M. Cavaletto, C. H. Keitel, Z. Harman, Phys. Rev. Lett. 113, 143001 (2014).

"All-Electromagnetic Control of Broadband Quantum Excitations Using Gradient Photon Echoes"
W. Liao, C. H. Keitel, A. Pálffy, Phys. Rev. Lett. 113, 123602 (2014).

"Generation of high-frequency combs locked to atomic resonances by quantum phase modulation"
Z. Liu, C. Ott, S. M. Cavaletto, Z. Harman, C. H. Keitel, T. Pfeifer, New Journal of Physics 16, 093005 (2014).

"Nonperturbative Bethe-Heitler pair creation in combined high- and low-frequency laser fields"
S. Augustin, C. Müller, Physics Letters B 737, 114-119 (2014).

"Uniform phase modulation via control of refractive index in a thermal atom vapor with vanishing diffraction or absorption"
L. Zhang, J. Evers, Phys. Rev. A 90, 023826 (2014).

"Electron-beam dynamics in a strong laser field including quantum radiation reaction"
N. Neitz, A. Di Piazza, Phys. Rev. A 90, 022102 (2014).

"The Wigner time delay for laser induced tunnel-ionization via the electron propagator"
E. Yakaboylu, M. Klaiber, K. Z. Hatsagortsyan, Phys. Rev. A 90, 012116 (2014).

"Ultrarelativistic electron states in a general background electromagnetic field"
A. Di Piazza, Phys. Rev. Lett. 113, 040402 (2014).

"Robust Signatures of Quantum Radiation Reaction in Focused Ultrashort Laser Pulses"
J. Li, K. Z. Hatsagortsyan, C. H. Keitel, Phys. Rev. Lett. 113, 044801 (2014).

"Coupling highly excited nuclei to the atomic shell in dense astrophysical plasmas"
S. Helmrich, K. Spenneberg, A. Pálffy, Phys. Rev. C 90, 015802 (2014).

"Plasma-Based Generation and Control of a Single Few-Cycle High-Energy Ultrahigh-Intensity Laser Pulse"
M. Tamburini, A. Di Piazza, T. Liseykina, C. H. Keitel, Phys. Rev. Lett. 113, 025005 (2014).

"Ultrarelativistic quasiclassical wave functions in strong laser and atomic fields"
A. Di Piazza, A. I. Milstein, Phys. Rev. A 89, 062114 (2014).

"Semianalytical model for nonlinear absorption in strongly interacting Rydberg gases"
M. Gärttner, S. Whitlock, D. W. . Schönleber, J. Evers, Phys. Rev. A 89, 063407 (2014).

"Investigating the QED vacuum with ultra-intense laser fields"
B. King, A. Di Piazza, European Physical Journal-Special Topics 223, 1063-1068 (2014).

"Broadband high-resolution X-ray frequency combs"
S. M. Cavaletto, Z. Harman, C. Ott, C. Buth, T. Pfeifer, C. H. Keitel, Nature Photonics 8, 520-523 (2014).

"A photon-photon collider in a vacuum hohlraum"
O. J. Pike, K. F. Mackenroth, E. G. Hill, S. J. Rose, Nature Photonics 8, 434-436 (2014).

"Justification of the single-mode approximation for a finite-duration laser pulse interacting with an electron"
O. D. Skoromnik, I. D. Feranchuk, Journal of Physics B 47, 115601 (2014).

"Laser-Nucleus Reactions: Population of States far above Yrast and far from Stability"
A. Pálffy, H. A. Weidenmüller, Phys. Rev. Lett. 112, 192502 (2014).

"Far-Field Signatures of a Two-Body Bound State in Collective Emission from Interacting Two-Level Atoms on a Lattice"
P. Longo, J. Evers, Phys. Rev. Lett. 112, 193601 (2014).

"Relativistic spin operators in various electromagnetic environments"
H. Bauke, S. Ahrens, C. H. Keitel, R. Grobe, Phys. Rev. A 89, 052101 (2014).

"What is the relativistic spin operator?"
H. Bauke, S. Ahrens, C. H. Keitel, R. Grobe, New Journal of Physics 16, 043012 (2014).

"Coherent versus incoherent excitation dynamics in dissipative many-body Rydberg systems"
D. W. . Schönleber, M. Gärttner, J. Evers, Phys. Rev. A 89, 033421 (2014).

"Spin dynamics in relativistic ionization with highly charged ions in super-strong laser fields"
M. Klaiber, E. Yakaboylu, C. Müller, H. Bauke, G. G. Paulus, K. Z. Hatsagortsyan, Journal of Physics B 47, 065603 (2014).

"Quasiclassical propagator of a relativistic particle via the path-dependent gauge potential"
E. Yakaboylu, K. Z. Hatsagortsyan, C. H. Keitel, Phys. Rev. A 89, 032115 (2014).

"Dominant Secondary Nuclear Photoexcitation with the X-Ray Free-Electron Laser"
J. Gunst, Y. A. Litvinov, C. H. Keitel, A. Pálffy, Phys. Rev. Lett. 112, 082501 (2014).
(see also APS Physics Viewpoint: Free-Electron Lasers Trigger Nuclear Transitions,
MPIK-Pressemitteilung,
Phys. Rev. Lett.: Editors' suggestion,
GSI-Pressemitteilung,
IDW-Pressemitteilung)

"High-precision measurement of the atomic mass of the electron"
S. Sturm, F. Köhler, J. Zatorski, A. Wagner, Z. Harman, G. Werth, W. Quint, C. H. Keitel, K. Blaum, Nature 506, 467-470 (2014).
(see also Nature News & Views: "Fundamental constants: the teamwork of precision",
MPIK-Pressemitteilung,
MPG-Pressemitteilung,
MPG press release,
pro-physik.de,
Spiegel Online,
Die Welt,
Discovery News,
Frankfurter Allgemeine Zeitung,
Wiener Zeitung,
Le Figaro,
El Pais)

"Electron dynamics controlled via self-interaction"
M. Tamburini, C. H. Keitel, A. Di Piazza, Phys. Rev. E 89, 021201 (2014).

"Proposed Entanglement of X-ray Nuclear Polaritons as a Potential Method for Probing Matter at the Subatomic Scale"
W. Liao, A. Pálffy, Phys. Rev. Lett. 112, 057401 (2014).

"Emission and Laser Spectroscopy of Trapped Highly Charged Ions in Electron Beam Ion Traps"
J. R. Crespo López-Urrutia, Z. Harman, Fundamental Physics in Particle Traps (2014).

"Field control of single x-ray photons in nuclear forward scattering"
X. Kong, W. Liao, A. Pálffy, New Journal of Physics 16, 013049 (2014).

"Higgs boson creation in laser-boosted lepton collisions"
S. Müller, C. H. Keitel, C. Müller, Physics Letters B 730, 161-165 (2014).

"Optical control of an atomic inner-shell x-ray laser"
G. Darvasi, C. H. Keitel, C. Buth, Phys. Rev. A 89, 013823 (2014).

"Diffractionless image propagation and frequency conversion via four-wave mixing exploiting the thermal motion of atoms"
L. Zhang, J. Evers, Phys. Rev. A 89, 013817 (2014).

"Novel aspects of radiation reaction in the classical and the quantum regime"
N. Neitz, N. Kumar, K. F. Mackenroth, K. Z. Hatsagortsyan, C. H. Keitel, A. Di Piazza, Journal of Physics: Conference Series 497, 012015 (2014).

"Full Counting Statistics of Laser Excited Rydberg Aggregates in a One-Dimensional Geometry"
H. Schempp, G. Günter, M. Robert-de-Saint-Vincent, C. S. Hofmann, D. . Breyel, A. . Komnik, D. W. . Schönleber, M. Gärttner, J. Evers, S. Whitlock, M. Weidemüller, Phys. Rev. Lett. 112, 013002 (2014).

"Tests of Classical and Quantum Electrodynamics with Intense Laser Fields"
S. Meuren, O. Har-Shemesh, A. Di Piazza, Progress in Ultrafast Intense Laser Science 10, 111-135 (2014).

"Nonlinear Bethe-Heitler Pair Creation in an Intense Two-Mode Laser Field"
S. Augustin, C. Müller, Journal of Physics: Conference Series 497, 012020 (2014).

"Relativistic features and time delay of laser-induced tunnel ionization"
E. Yakaboylu, M. Klaiber, H. Bauke, K. Z. Hatsagortsyan, C. H. Keitel, Phys. Rev. A 88, 063421 (2013).

"Measurement of the autoionization lifetime of the energetically lowest doubly excited Q11?+u state in H2 using electron ejection asymmetry"
A. Fischer, A. G. Sperl, P. Cörlin, M. Schönwald, S. Meuren, J. Ullrich, T. Pfeifer, R. Moshammer, A. Senftleben, Journal of Physics B: Atomic, Molecular and Optical Physics 47, 021001 (2013).

"Major role of multielectronic K-L intershell resonant recombination processes in Li- to O-like ions"
C. Beilmann, Z. Harman, P. H. Mokler, S. Bernitt, C. H. Keitel, J. Ullrich, J. R. Crespo López-Urrutia, Phys. Rev. A 88, 062706 (2013).
(see also Phys. Rev. A: Editors' suggestion)

"X-ray frequency combs from optically controlled resonance fluorescence"
S. M. Cavaletto, Z. Harman, C. Buth, C. H. Keitel, Phys. Rev. A 88, 063402 (2013).

"Fine structure of open-shell diatomic molecules in combined electric and magnetic fields"
M. Gärttner, J. Omiste, P. Schmelcher, R. Gonzaález-Feárez, Molecular Physics 111, 1865-1878 (2013).

"Novel aspects of radiation reaction in the ultrarelativistic quantum regime"
K. F. Mackenroth, N. Neitz, A. Di Piazza, Plasma Physics and Controlled Fusion 55, 124018 (2013).

"Laser-driven generation of collimated ultra-relativistic positron beams"
G. Sarri, W. Schumaker, A. Di Piazza, K. Poder, J. M. Cole, M. Vargas, D. Doria, S. Kushel, B. Dromey, G. Grittani, L. Gizzi, M. E. Dieckmann, A. Green, V. Chvykov, A. Maksimchuk, V. Yanovsky, Z. H. He, B. X. Hou, J. A. Nees, S. Kar, Z. Najmudin, A. G. R. Thomas, C. H. Keitel, K. Krushelnick, M. Zepf, Plasma Physics and Controlled Fusion 55, 124017 (2013).

"Axion-induced birefringence effects in laser driven nonlinear vacuum interaction"
S. Villalba-Chavez, A. Di Piazza, Journal of High Energy Physics 2013, 136 (2013).

"Nuclear-size self-energy and vacuum-polarization corrections to the bound-electron g factor "
V. A. Yerokhin, C. H. Keitel, Z. Harman, Journal of Physics B: Atomic, Molecular and Optical Physics 46, 245002 (2013).

"The Potential Uses of X-Ray FELS in Nuclear Studies"
W. Liao, C. H. Keitel, A. Pálffy, FEL2013: Proceedings of the 35th International Free-Electron Laser Conference , 749-752 (2013).

"Noncompeting Channel Approach to Pair Creation in Supercritical Fields"
Q. Z. Lv, Y. Liu, Y. J. Li, R. Grobe, Q. Su, Phys. Rev. Lett. 11, 183204 (2013).

"X-ray quantum optics with Mössbauer nuclei embedded in thin film cavities"
K. P. Heeg, J. Evers, Phys. Rev. A 88, 043828 (2013).

"Dynamic formation of Rydberg aggregates at off-resonant excitation"
M. Gärttner, K. P. Heeg, T. Gasenzer, J. Evers, Phys. Rev. A 88, 043410 (2013).

"Two-loop QED corrections with closed fermion loops for the bound-electron g factor"
V. A. Yerokhin, Z. Harman, Phys. Rev. A 88, 042502 (2013).

"Leptogenesis with lepton-number-violating Dirac neutrinos"
K. P. Heeg, Phys. Rev. D. 88 (2013).

"Coronium in the laboratory: Laser spectroscopy on the Fe XIV green coronal line"
K. Schnorr, V. Mäckel, N. S. Oreshkina, S. Augustin, F. Brunner, Z. Harman, C. H. Keitel, J. Ullrich, J. R. Crespo López-Urrutia, Astrophys. J., Suppl. Ser. 776, 121 (2013).

"Attosecond pulses at kiloelectronvolt photon energies from high-order-harmonic generation with core electrons"
C. Buth, F. He, J. Ullrich, C. H. Keitel, K. Z. Hatsagortsyan, Phys. Rev. A 88, 033848 (2013).

"On refractive processes in strong laser field quantum electrodynamics"
A. Di Piazza, Annals of Physics 338, 302-318 (2013).

"Nonlinear absorption and density-dependent dephasing in Rydberg electromagnetically-induced-transparency media"
M. Gärttner, J. Evers, Phys. Rev. A 88, 033417 (2013).

"Collective quantum dot inversion and amplification of photon and phonon waves"
S. Das, M. A. Macovei, Phys. Rev. B 88, 125306 (2013).

"Nuclear level densities at high excitation energies and for large particle numbers"
A. Pálffy, H. A. Weidenmüller, Nucl.Phys.A 917, 15-42 (2013).

"X-Ray Resonant Photoexcitation: Linewidths and Energies of K? Transitions in Highly Charged Fe Ions"
J. K. Rudolph, S. Bernitt, S. W. Epp, R. Steinbrügge, C. Beilmann, G. V. Brown, S. Eberle, A. Graf, Z. Harman, N. Hell, M. Leutenegger, A. Müller, K. Schlage, H. Wille, H. Yava?, J. Ullrich, J. R. Crespo López-Urrutia, Physical Review Letters 111, 103002 (2013).
(see also MPIK-Pressemitteilung,
Phys. Rev. Lett.: Editors' suggestion)

"Radiation-Reaction-Force-Induced Nonlinear Mixing of Raman Sidebands of an Ultraintense Laser Pulse in a Plasma"
N. Kumar, K. Z. Hatsagortsyan, C. H. Keitel, Physical Review Letters 111, 105001 (2013).

"Higher-order resonant electronic recombination as a manifestation of configuration interaction"
C. Beilmann, P. Amaro, H. Bekker, Z. Harman, J. R. Crespo López-Urrutia, S. Tashenov, Phys.Scr.T 2013, 014052 (2013).

"High-quality multi-GeV electron bunches via cyclotron autoresonance"
B. J. Galow, J. Li, Y. I. Salamin, Z. Harman, C. H. Keitel, Phys. Rev. Spec. Top.-Accel. Beams 16, 081302 (2013).

"Vacuum-Assisted Generation and Control of Atomic Coherences at X-Ray Energies"
K. P. Heeg, H. Wille, K. Schlage, T. Guryeva, D. Schumacher, I. Uschmann, K. S. Schulze, B. Marx, T. Kämpfer, G. G. Paulus, R. Röhlsberger, J. Evers, Physical Review Letters 111, 073601 (2013).
(see also MPIK-Pressemitteilung,
IDW-Pressemitteilung,
pro-physik.de)

"Interference effects in Bethe-Heitler pair creation in a bichromatic laser field"
S. Augustin, C. Müller, Phys. Rev. A 88, 022109 (2013).
(see also Phys. Rev. A: Editors' suggestion)

"Photon transport in one-dimensional systems coupled to three-level quantum impurities"
C. Martens, P. Longo, K. Busch, New J. Phys. 15, 083019 (2013).

"Stochasticity Effects in Quantum Radiation Reaction"
N. Neitz, A. Di Piazza, Physical Review Letters 111, 054802 (2013).

"Quantum interference effects in an ensemble of 229Th nuclei interacting with coherent light"
S. Das, A. Pálffy, C. H. Keitel, Physical Review C 88, 024601 (2013).

"Polarization operator for plane-wave background fields"
S. Meuren, C. H. Keitel, A. Di Piazza, Phys. Rev. D. 88, 013007 (2013).

"Kapitza-Dirac effect in the relativistic regime"
S. Ahrens, H. Bauke, C. H. Keitel, C. Müller, Phys. Rev. A 88, 012115 (2013).

"Optical cloning of arbitrary images beyond the diffraction limits"
O. N. Verma, L. Zhang, J. Evers, T. N. Dey, Phys. Rev. A 88, 013810 (2013).

"Directional emission of dielectric disks with a finite scatterer in the THz regime"
S. Preu, S. I. Schmid, F. Sedlmeier, J. Evers, H. G. L. Schwefel, Optics Express 12, 16370-16380 (2013).

"Nuclear recollisions in laser-assisted ? decay"
H. M. Castañeda Cortés, C. Müller, C. H. Keitel, A. Pálffy, Physics Letter B 723, 401-405 (2013).

"Table-Top Laser-Based Source of Femtosecond, Collimated, Ultrarelativistic Positron Beams"
G. Sarri, W. Schumaker, A. Di Piazza, M. Vargas, B. Dromey, M. E. Dieckmann, V. Chvykov, A. Maksimchuk, V. Yanovsky, Z. H. He, B. X. Hou, J. A. Nees, A. G. R. Thomas, C. H. Keitel, M. Zepf, K. Krushelnick, Physical Review Letters; American Physical Society., Woodbury, N.Y., etc. 110, 255002 (2013).
(see also APS Synopsis: Tabletop Particle Accelerator,
MPIK-Pressemitteilung,
Latest Choice in New Scientist)

"Spectra of coherent resonant light pulses interacting with a two-level atom in a waveguide"
J. F. M. Werra, P. Longo, K. Busch, Physical Review A 87, 063821 (2013).

"Bethe-Heitler pair production in ultrastrong short laser pulses"
K. Krajewska, C. Müller, J. Z. Kami?ski, Phys. Rev. A 87, 062107 (2013).

"Spectrum of collective spontaneous emission beyond the rotating-wave approximation"
Y. Li, J. Evers, W. Feng, S. Zhu, Phys. Rev. A 87, 053837 (2013).

"Sub-Poissonian Statistics of Rydberg-Interacting Dark-State Polaritons"
C. S. Hofmann, G. Günter, H. Schempp, M. Robert-de-Saint-Vincent, M. Gärttner, J. Evers, S. Whitlock, M. Weidemüller, Physical Review Letters 110, 203601 (2013).

"Three-beam setup for coherently controlling nuclear-state population"
W. Liao, A. Pálffy, C. H. Keitel, Physical Review C 87, 054609 (2013).
(see also Phys. Rev. C: Editors' suggestion)

"Lorentz Meets Fano in Spectral Line Shapes: A Universal Phase and Its Laser Control"
C. Ott, A. Kaldun, P. Raith, K. Meyer, M. Laux, J. Evers, C. H. Keitel, C. H. Greene, T. Pfeifer, Science 340, 716-720 (2013).
(see also MPIK-Pressemitteilung,
MPG-Pressemitteilung)

"Collapse-and-revival dynamics of strongly laser-driven electrons"
O. D. Skoromnik, I. D. Feranchuk, C. H. Keitel, Phys. Rev. A 87, 052107 (2013).

"Computational relativistic quantum dynamics and its application to relativistic tunneling and Kapitza-Dirac scattering"
H. Bauke, M. Klaiber, E. Yakaboylu, K. Z. Hatsagortsyan, S. Ahrens, C. Müller, C. H. Keitel, Proceedings of SPIE 8780, 87801Q (2013).

"Control of beam propagation in optically written waveguides beyond the paraxial approximation"
L. Zhang, T. N. Dey, J. Evers, Physical Review A 87, 043842 (2013).

"Under-the-Barrier Dynamics in Laser-Induced Relativistic Tunneling"
M. Klaiber, E. Yakaboylu, H. Bauke, K. Z. Hatsagortsyan, C. H. Keitel, Physical Review Letters 110, 153004 (2013).
(see also MPIK-Pressemitteilung,
MPG-Pressemitteilung,
idw press release)

"Mößbauer Science and Nuclear Quantum Optics with X-ray Free Electron Laser Oscillators"
J. Evers, Beam Dynamics Newsletter 60, 44-50 (2013).

"Super-filament formation of a relativistic Gaussian electron beam in a dense collisional plasma"
T. Tückmantel, N. Kumar, A. Pukhov, New J. Phys. 15, 035021 (2013).

"Optical Diode Made from a Moving Photonic Crystal"
D. Wang, H. Zhou, M. Guo, J. Zhang, J. Evers, S. Zhu, Physical Review Letters 110, 093901 (2013).

"Above-threshold ionization with highly charged ions in superstrong laser fields. II. Relativistic Coulomb-corrected strong-field approximation"
M. Klaiber, E. Yakaboylu, K. Z. Hatsagortsyan, Phys. Rev. A 87, 023418 (2013).

"Above-threshold ionization with highly charged ions in superstrong laser fields. I. Coulomb-corrected strong-field approximation"
M. Klaiber, E. Yakaboylu, K. Z. Hatsagortsyan, Phys. Rev. A 87, 023417 (2013).

"Interference-induced peak splitting in extreme ultraviolet superfluorescence"
N. Cui, C. H. Keitel, M. A. Macovei, Optics Letters 38, 570-572 (2013).

"Nonlinear Double Compton Scattering in the Ultrarelativistic Quantum Regime"
K. F. Mackenroth, A. Di Piazza, Physical Review Letters 110, 070402 (2013).

"Optical force acting on strongly driven atoms in free space or modified reservoirs"
M. A. Macovei, Journal of Physics B: Atomic, Molecular and Optical Physics 46, 045502 (2013).

"Numerical simulations of optical centroid measurements with nonclassical fields"
Q. Gulfam, J. Evers, Phys. Rev. A 87, 023804 (2013).

"X-ray quantum optics"
B. W. Adams, C. Buth, S. M. Cavaletto, J. Evers, Z. Harman, C. H. Keitel, A. Pálffy, A. Picón, R. Röhlsberger, Y. Rostovtsev, K. Tamasaku, Journal of Modern Optics 60, 2-21 (2013).
(see also Taylor & Francis Physics Top 10 in 2013)

"Incoherent excitation of few-level multi-atom ensembles"
B. Mohan, M. A. Macovei, Journal of Physics B: Atomic, Molecular and Optical Physics 46, 035503 (2013).

"Negative refraction with tunable absorption in an active dense gas of atoms"
P. P. Orth, R. Hennig, C. H. Keitel, J. Evers, New J. Phys. 15, 013027 (2013).

"Nuclear level densities in the constant-spacing model"
A. Pálffy, H. A. Weidenmüller, Physics Letters B 718, 1105-1110 (2013).

"Enhancing the high-order harmonic generation yield within a specified spectral window via electron wave-packet engineering"
M. C. Kohler, K. Z. Hatsagortsyan, J. Opt. Soc. Am. B-Opt. Phys. 30, 57-61 (2013).

"Pair production in a plane wave due to a thermal background"
B. King, A. Di Piazza, Journal of Physics: Conference Series 414, 012016 (2013).

"Warum leuchtet Eisen nicht wie es soll? / Why doesn’t iron glow as predicted?"
S. Bernitt, J. R. Crespo López-Urrutia, Z. Harman, Max-Planck-Gesellschaft, Forschungsbericht 2013 - Max-Planck-Institut für Kernphysik (2013).

"Die Quantenelektrodynamik auf den Prüfstand gestellt / Quantum electrodynamics put on a test bench"
S. Sturm, K. Blaum, Z. Harman, C. H. Keitel, F. Köhler, A. Wagner, J. Zatorski, Jahrbuch der Max-Planck-Gesellschaft zur Förderung der Wissenschaften 2013, 4358343 (2013).

"Photo-proton emission from halo nuclei in the presence of a linearly polarized laser field"
A. Dadi, C. Müller, Journal of Physics: Conference Series 414, 012010 (2013).

"Spin effects in strong-field laser-electron interactions"
S. Ahrens, T. Müller, S. Villalba-Chavez, H. Bauke, C. Müller, 21st International Laser Physics Workshop, Journal of Physics: Conference Series 414, 012012 (2013).

"Two-Photon Quantum Dynamics in a Nonlinear Micromaser"
X. Xie, V. Ciornea, M. A. Macovei, Proceedings of the Romanian Academy - Series A: Mathematics, Physics 14, 48-55 (2013).

"Coherent Control of Nuclei and X-Rays"
W. Liao, Springer Theses (2013).

"Coherence-Enhanced Optical Determination of the 229Th Isomeric Transition"
W. Liao, S. Das, C. H. Keitel, A. Pálffy, Physical Review Letters 109, 262502 (2012).

"Hybrid model for Rydberg gases including exact two-body correlations"
K. P. Heeg, M. Gärttner, J. Evers, Phys. Rev. A 86, 063421 (2012).

"Magnetic Control of the Pair Creation in Spatially Localized Supercritical Fields"
Q. C. Su, W. Su, Q. Z. Lv, M. Jiang, X. Lu, Z. Sheng, R. Grobe, Physical Review Letters 109, 253202 (2012).

"An unexpectedly low oscillator strength as the origin of the Fe XVII emission problem"
S. Bernitt, G. V. Brown, J. K. Rudolph, R. Steinbrügge, A. Graf, M. Leutenegger, S. W. Epp, S. Eberle, K. Kubicek, V. Mäckel, M. C. Simon, E. Träbert, E. W. Magee, C. Beilmann, N. Hell, S. Schippers, A. Müller, S. M. Kahn, A. Surzhykov, Z. Harman, C. H. Keitel, J. Clementson, F. S. Porter, W. Schlotter, J. J. Turner, J. Ullrich, P. Beiersdorfer, J. R. Crespo López-Urrutia, Nature 492, 225-228 (2012).
(see also MPG-Pressemitteilung,
MPG press release,
pro-physik.de)

"Pair production in a plane wave by thermal background photons"
B. King, H. Gies, A. Di Piazza, Phys. Rev. D. 86, 125007 (2012).

"QED with an external field: Hamiltonian treatment of Lorentz-non-invariant background as an anisotropic medium"
S. Villalba-Chavez, A. E. Shabad, Phys. Rev. D. 86, 105040 (2012).

"Coherent Storage and Phase Modulation of Single Hard-X-Ray Photons Using Nuclear Excitons"
W. Liao, A. Pálffy, C. H. Keitel, Physical Review Letters 109, 197403 (2012).
(see also APS Physics Focus,
IDW-Pressemitteilung,
Der Standard,
MPIK-Pressemitteilung)

"Sub-barrier Coulomb effects on the interference pattern in tunneling-ionization photoelectron spectra"
T. Yan, D. Bauer, Phys. Rev. A 86, 053403 (2012).

"Resonantly enhanced photoionization in correlated three-atomic systems"
B. Najjari, C. Müller, A. B. Voitkiv, New J. Phys. 14, 105028 (2012).

"Quasiclassical approach to high-energy QED processes in strong laser and atomic fields"
A. Di Piazza, A. I. Milstein, Physics Letters B 717, 224-228 (2012).

"Photon-photon scattering in collisions of intense laser pulses"
B. King, C. H. Keitel, New J. Phys. 14, 103002 (2012).
(see also Quantum optics and lasers in NJP Highlights of 2012)

"Finite-size effects in strongly interacting Rydberg gases"
M. Gärttner, K. P. Heeg, T. Gasenzer, J. Evers, Phys. Rev. A 86, 033422 (2012).

"Carrier-envelope phase dependence in single-cycle laser pulse propagation with the inclusion of counter-rotating terms"
N. Cui, M. A. Macovei, New J. Phys. 14, 093031 (2012).

"Resonance fluorescence in ultrafast and intense x-ray free-electron-laser pulses"
S. M. Cavaletto, C. Buth, Z. Harman, E. P. Kanter, S. H. Southworth, L. Young, C. H. Keitel, Phys. Rev. A 86, 033402 (2012).

"Effect of retardation on the dynamics of entanglement between atoms"
Q. Gulfam, Z. Ficek, J. Evers, Phys. Rev. A 86, 022325 (2012).

"Extremely high-intensity laser interactions with fundamental quantum systems"
A. Di Piazza, C. Müller, K. Z. Hatsagortsyan, C. H. Keitel, Rev. Modern Phys. 84, 1177-1228 (2012).

"Longitudinal spin polarization in multiphoton Bethe-Heitler pair production"
T. Müller, C. Müller, Phys. Rev. A 86, 022109 (2012).

"Cooperative effects in nuclear excitation with coherent x-ray light"
A. Junker, A. Pálffy, C. H. Keitel, New J. Phys. 14, 085025 (2012).

"Frontiers of Atomic High-Harmonic Generation"
M. C. Kohler, T. Pfeifer, K. Z. Hatsagortsyan, C. H. Keitel, Advances in Atomic, Molecular, and Optical Physics 61, 159-208 (2012).

"Suppression of pair creation due to a steady magnetic field"
W. Su, M. Jiang, Q. Z. Lv, Y. J. Li, Z. Sheng, R. Grobe, Q. Su, Phys. Rev. A 86, 013422 (2012).

"Spin Dynamics in the Kapitza-Dirac Effect"
S. Ahrens, H. Bauke, C. H. Keitel, C. Müller, Phys. Rev. Lett. 109, 043601 (2012).

"Scaling Laws for Photoelectron Holography in the Midinfrared Wavelength Regime"
Y. Huismans, A. Gijsbertsen, A. S. Smolkowska, J. H. Jungmann, A. Rouzée, P. S. W. M. Logman, F. Lépine, C. Cauchy, S. Zamith, T. Marchenko, J. M. Bakker, G. Berden, B. Redlich, A. F. G. van der Meer, M. Y. Ivanov, T. Yan, D. Bauer, O. Smirnova, M. J. J. Vrakking, Physical Review Letters 109, 013002 (2012).

"Electron correlation and interference effects in strong-field processes"
M. C. Kohler, C. Müller, C. Buth, A. B. Voitkiv, K. Z. Hatsagortsyan, J. Ullrich, T. Pfeifer, C. H. Keitel, Multiphoton Processes and Attosecond Physics (ICOMP'12), Springer Proceedings in Physics, Vol. 125, Chap. 35 (2012).

"Optimization of the recollision step in high-order harmonic generation"
M. Klaiber, M. C. Kohler, K. Z. Hatsagortsyan, C. H. Keitel, Phys. Rev. A 85, 063829 (2012).

"Acceleration of proton bunches by petawatt chirped radially polarized laser pulses"
J. Li, Y. I. Salamin, B. J. Galow, C. H. Keitel, Phys. Rev. A 85, 063832 (2012).

"Laser acceleration of proton bunches by petawatt chirped linearly polarized laser pulses"
Y. I. Salamin, J. Li, B. J. Galow, Z. Harman, C. H. Keitel, Phys. Rev. A 85, 063831 (2012).

"Quantum fluctuations in the dressed vacuum of a bosonic model system"
R. E. Wagner, S. Acosta, S. A. Glasgow, Q. Su, R. Grobe, Journal of Physics A 45, 275303 (2012).

"Manipulating the Annihilation Dynamics of Positronium via Collective Radiation"
N. Cui, M. A. Macovei, K. Z. Hatsagortsyan, C. H. Keitel, Phys. Rev. Lett. 108, 243401 (2012).

"Generation of correlated photon pairs in different frequency ranges"
F. Oster, C. H. Keitel, M. A. Macovei, Phys. Rev. A 85, 063814 (2012).

"Ultrafast absorption of intense x rays by nitrogen molecules"
C. Buth, J. Liu, M. H. Chen, J. P. Cryan, L. Fang, J. M. Glownia, M. Hoener, R. N. Coffee, N. Berrah, The Journal of Chemical Physics 136, 214310 (2012).

"Laser-assisted nuclear photoeffect"
A. Dadi, C. Müller, Physical Review C 85, 064604 (2012).

"Collective spontaneous emission beyond the rotating-wave approximation"
Y. Li, J. Evers, H. Zheng, S. Zhu, Phys. Rev. A 85, 053830 (2012).

"Quantum teleportation of high-dimensional atomic ensemble states"
M. Al-Amri, J. Evers, M. Ikram, M. S. Zubairy, Journal of Physics B: Atomic, Molecular and Optical Physics 45, 095502 (2012).

"Reply to "Comment on ’Nonlinear Compton scattering in ultrashort laser pulses’""
K. F. Mackenroth, A. Di Piazza, Phys. Rev. A 85, 046102 (2012).

"Peak intensity measurement of relativistic lasers via nonlinear Thomson scattering"
O. Har-Shemesh, A. Di Piazza, Optics Letters 37, 1352-1354 (2012).
(see also Laser Focus World)

"Angular distribution of high-energy e+e? photoproduction close to the end of the spectrum at large momentum transfer"
A. Di Piazza, A. I. Milstein, Phys. Rev. A 85, 042107-1-042107-6 (2012).

"Non-perturbative approach to bosonic multi-pair creation in arbitrary external fields"
Q. Su, Y. Li, R. Grobe, Laser Physics 22, 745-752 (2012).

"Influence of Surface Waves on Plasma High-Order Harmonic Generation"
D. an der Brügge, N. Kumar, A. Pukhov, C. Rödel, Phys. Rev. Lett. 108, 125002 (2012).

"Pair creation enhancement due to combined external fields"
M. Jiang, W. Su, Q. Z. Lv, X. Lu, Y. J. Li, R. Grobe, Q. Su, Phys. Rev. A 85, 033408 (2012).

"QED calculation of the nuclear magnetic shielding for hydrogenlike ions"
V. A. Yerokhin, K. Pachucki, Z. Harman, C. H. Keitel, Phys. Rev. A 85, 022512 (2012).

"Coulomb focusing in above-threshold ionization in elliptically polarized midinfrared strong laser fields"
C. Liu, K. Z. Hatsagortsyan, Phys. Rev. A 85, 023413 (2012).

"Local and nonlocal spatial densities in quantum field theory"
R. E. Wagner, M. R. Ware, E. V. Stefanovich, Q. Su, R. Grobe, Phys. Rev. A 85, 022121 (2012).

"Macroscopic aspects of relativistic x-ray-assisted high-order-harmonic generation"
M. C. Kohler, K. Z. Hatsagortsyan, Phys. Rev. A 85, 023819 (2012).

"Nuclear Shape Effect on the g Factor of Hydrogenlike Ions"
J. Zatorski, N. S. Oreshkina, C. H. Keitel, Z. Harman, Phys. Rev. Lett. 108, 063005 (2012).

"Overlapping resonances in nuclei coupling to the atomic shells"
S. K. Arigapudi, A. Pálffy, Phys. Rev. A 85, 012710 (2012).

"A stability analysis of a real space split operator method for the Klein-Gordon equation"
F. Blumenthal, H. Bauke, Journal of Computational Physics 231, 454-464 (2012).

"Streaking at high energies with electrons and positrons"
A. Ipp, J. Evers, C. H. Keitel, K. Z. Hatsagortsyan, Physics Letters B 702, 383-387 (2012).

"Laserbeschleunigung von Ionen"
Z. Harman, B. J. Galow, C. H. Keitel, Forschungsbericht 2012 - Max-Planck-Institut für Kernphysik (2012).

"Photon-Photon Interaction in Structured QED Vacuum"
K. Z. Hatsagortsyan, G. Y. Kryuchkyan, International Journal of Modern Physics: Conference Series 15, 22 (2012).

"Wenn Eisen transparent wird"
J. Evers, Physik Journal 11, 18-19 (2012).

"Electron recombination in dense photonic, electronic and atomic environments "
C. Müller, H. Hu, B. Najjari, J. R. Crespo López-Urrutia, Z. Harman, A. B. Voitkiv, Journal of Physics: Conference Series 388, 012003 (2012).

"Two-Center Resonant Photoionization"
B. Najjari, A. B. Voitkiv, C. Müller, XXVII International Conference on Photonic, Electronic and Atomic Collisions (ICPEAC 2011), Journal of Physics: Conference Series 388, 022089 (2012).

"Higher order resonant intershell electronic recombination for highly charged ions"
P. H. Mokler, C. Beilmann, S. Bernitt, Z. Harman, C. H. Keitel, O. Postavaru, J. Ullrich, J. R. Crespo López-Urrutia, Journal of Physics: Conference Series 388, 062043 (2012).

"Quantum Electron Self-Interaction in a Strong Laser Field"
S. Meuren, A. Di Piazza, Phys. Rev. Lett. 107, 260401 (2011).

"Coherent x-ray generation from below-threshold harmonics"
J. Liu, M. C. Kohler, C. H. Keitel, K. Z. Hatsagortsyan, Phys. Rev. A 84, 063817 (2011).

"Collectively enhanced resonant photoionization in a multiatom ensemble"
C. Müller, M. A. Macovei, A. B. Voitkiv, Phys. Rev. A 84, 055401 (2011).

"Scattering of intense laser radiation by a single-electron wave packet"
J. P. Corson, J. B. Peatross, C. Müller, K. Z. Hatsagortsyan, Phys. Rev. A 84, 053831 (2011).

"Microcavities coupled to multilevel atoms"
S. I. Schmid, J. Evers, Phys. Rev. A 84, 053822 (2011).

"Stationary entanglement in strongly coupled qubits"
K. Xia, M. A. Macovei, J. Evers, Physical review / B 84, 184510 (2011).

"Optimizing direct intense-field laser acceleration of ions"
Z. Harman, Y. I. Salamin, B. J. Galow, C. H. Keitel, Phys. Rev. A 84, 053814 (2011).

"Dense Monoenergetic Proton Beams from Chirped Laser-Plasma Interaction"
B. J. Galow, Y. I. Salamin, T. Liseykina, Z. Harman, C. H. Keitel, Phys. Rev. Lett. 107, 185002 (2011).
(see also IDW-Pressemitteilung,
Pro Physik (in German))

"Nondiffracting optical beams in a three-level Raman system"
T. N. Dey, J. Evers, Phys. Rev. A 84, 043842 (2011).

"Radiation reaction effects on electron nonlinear dynamics and ion acceleration in laser-solid interaction"
M. Tamburini, F. Pegoraro, A. Di Piazza, C. H. Keitel, T. Liseykina, A. Macchi, Nucl. Instrum. Methods Phys. Res. A 653, 181-185 (2011).

"Time-dependent Kohn-Sham approach to quantum electrodynamics"
M. Ruggenthaler, K. F. Mackenroth, D. Bauer, Phys. Rev. A 84, 042107 (2011).

"Photon scattering from strongly driven atomic ensembles"
L. Jin, J. Evers, M. A. Macovei, Phys. Rev. A 84, 043812 (2011).

"Nuclear coherent population transfer with X-ray laser pulses"
W. Liao, A. Pálffy, C. H. Keitel, Physics Letters B 705, 134-138 (2011).

"Prominent Higher-Order Contributions to Electronic Recombination"
C. Beilmann, P. H. Mokler, S. Bernitt, C. H. Keitel, J. Ullrich, J. R. Crespo López-Urrutia, Z. Harman, Phys. Rev. Lett. 107, 143201 (2011).
(see also Phys. Rev. Lett.: Editors' suggestion,
APS Physics (Synopsis),
IDW-Pressemitteilung,
MPIK-Pressemitteilung)

"High-order harmonic generation enhanced by XUV light"
C. Buth, M. C. Kohler, J. Ullrich, C. H. Keitel, Optics Letters 36, 3530-3532 (2011).

"Relativistic three-body recombination with the QED vacuum"
H. Hu, C. Müller, Phys. Rev. Lett. 107, 090402 (2011).

"Strong-field QED in intense laser fields"
K. F. Mackenroth, M. Ruf, B. King, A. Di Piazza, C. Müller, C. H. Keitel, Proceedings of the SPIE 7994, 799422 (2011).

"Numerical signatures of non-self-adjointness in quantum Hamiltonians"
M. Ruf, C. Müller, R. Grobe, Journal of Physics A: Mathematical and Theoretical 44, 345205 (2011).

"Subwavelength position measurements with running-wave driving fields"
J. Evers, S. Qamar, Phys. Rev. A 84, 023802 (2011).

"Bragg Scattering of Light in Vacuum Structured by Strong Periodic Fields"
G. Y. Kryuchkyan, K. Z. Hatsagortsyan, Phys. Rev. Lett. 104, 053604 (2011).

"QED Theory of the Nuclear Magnetic Shielding in Hydrogenlike Ions"
V. A. Yerokhin, K. Pachucki, Z. Harman, C. H. Keitel, Phys. Rev. Lett. 107, 043004 (2011).

"Streaking at high energies with electrons and positrons"
A. Ipp, J. Evers, C. H. Keitel, K. Z. Hatsagortsyan, AIP Conf. Proc. 1462, 25-30 (2011).

"Accelerating the Fourier split operator method via graphics processing units"
H. Bauke, C. H. Keitel, Comput. Phys. Commun. 182, 2454-2463 (2011).

"Pathway interference in a loop array of three coupled microresonators"
S. I. Schmid, K. Xia, J. Evers, Phys. Rev. A 84, 013808 (2011).

"g Factor of Hydrogenlike 28Si13+"
S. Sturm, A. Wagner, B. Schabinger, J. Zatorski, Z. Harman, W. Quint, G. Werth, C. H. Keitel, K. Blaum, Physical review letters 107, 023002 (2011).
(see also Phys. Rev. Lett.: Editors' suggestion,
APS Physics (Synopsis),
MPG-Pressemitteilung)

"Time analysis of above-threshold ionization in extreme-ultraviolet laser pulses"
H. Ebadi, C. H. Keitel, K. Z. Hatsagortsyan, Phys. Rev. A 83, 063418 (2011).

"Resonant two-photon ionization of two identical atoms"
C. Müller, A. B. Voitkiv, Phys. Rev. Lett. 107, 013001 (2011).

"Higher-order resonant inter-shell electronic recombination for heavy highly charged ions"
C. Beilmann, P. H. Mokler, S. Bernitt, Z. Harman, C. H. Keitel, O. Postavaru, J. Ullrich, J. R. Crespo López-Urrutia, Phys.Scr.T T144, 014014 (2011).

"Relativistic ionization characteristics of laser-driven hydrogenlike ions"
H. Bauke, H. Hetzheim, G. R. Mocken, M. Ruf, C. H. Keitel, Phys. Rev. A 83, 063414 (2011).

"Laser-assisted decay of quasistationary states"
H. M. Castañeda Cortés, S. Popruzhenko, D. Bauer, A. Pálffy, New J. Phys. 13, 063007 (2011).

"Controllable optical switch using a Bose-Einstein condensate in an optical cavity"
S. Yang, M. Al-Amri, J. Evers, M. S. Zubairy, Phys. Rev. A 83, 053821 (2011).

"Subwavelength optical lattices induced by position-dependent dark states"
Q. Sun, J. Evers, M. Kiffner, M. S. Zubairy, Phys. Rev. A 83, 053412 (2011).

"Wavelength and intensity dependence of multiple forward scattering of electrons at above-threshold ionization in mid-infrared strong laser fields"
C. Liu, K. Z. Hatsagortsyan, Journal of Physics B: Atomic, Molecular and Optical Physics 44, 095402 (2011).

"QED and nuclear effects in strong optical and x-ray laser fields"
A. Di Piazza, A. Pálffy, W. Liao, K. Z. Hatsagortsyan, C. H. Keitel, Proceedings of SPIE 8075, 807505 (2011).

"Ultra-strong laser pulses: streak-camera for gamma-rays via pair production and quantum radiative reaction"
K. Z. Hatsagortsyan, A. Ipp, J. Evers, A. Di Piazza, C. H. Keitel, Proceedings of SPIE 8080, 80801T (2011).

"Coherent control of the cooperative branching ratio for nuclear x-ray pumping"
A. Pálffy, C. H. Keitel, J. Evers, Physical review / B 83, 155103 (2011).

"Phase-matched coherent hard X-rays from relativistic high-order harmonic generation"
M. C. Kohler, M. Klaiber, K. Z. Hatsagortsyan, C. H. Keitel, Europhysics letters 94, 14002 (2011).

"Nonlinear Compton scattering in ultrashort laser pulses"
K. F. Mackenroth, A. Di Piazza, Phys. Rev. A 83, 032106 (2011).

"A Maxwell-Schrödinger solver for quantum optical few-level systems"
R. Fleischhaker, J. Evers, Comput. Phys. Commun. 182, 739-747 (2011).

"Phenomenological model of multiphoto-production of charged pion pairs on the proton"
A. Dadi, C. Müller, Physics Letters B 697, 142-146 (2011).

"Attochirp-free high-order harmonic generation"
M. C. Kohler, C. H. Keitel, K. Z. Hatsagortsyan, Optics Express 19, 4411-4420 (2011).
(see also nature photonics)

"Breit interaction in dielectronic recombination of hydrogenlike uranium"
D. Bernhardt, C. Brandau, Z. Harman, C. Kozhuharov, A. Müller, W. Scheid, S. E. Schippers, E. W. Schmidt, D. Yu, A. N. Artemyev, I. I. Tupitsyn, S. Böhm, F. Bosch, F. J. Currell, B. Franzke, A. Gumberidze, J. Jacobi, P. H. Mokler, F. Nolden, U. Spillmann, Z. Stachura, M. Steck, T. Stöhlker, Phys. Rev. A 83, 020701(R) (2011).

"Radiation pressure and radiation reaction effects in laser-solid interaction"
A. Macchi, M. Tamburini, S. Veghini, F. Pegoraro, A. Di Piazza, C. H. Keitel, Proceedings of the SPIE 7994, 799421 (2011).

"Spin correlations in nonperturbative electron-positron pair creation by petawatt laser pulses colliding with a TeV proton beam"
T. Müller, C. Müller, Phys. Lett. B 696, 201 (2011).

"High-Precision Metrology of Highly Charged Ions via Relativistic Resonance Fluorescence"
O. Postavaru, Z. Harman, C. H. Keitel, Phys. Rev. Lett. 106, 033001 (2011).

"Low-energy structure of photoelectron spectra in mid-infrared strong laser fields: classical description"
C. Liu, K. Z. Hatsagortsyan, Optics InfoBase HILAS2011, HWC20 (2011).

"Transient absorption and reshaping of ultrafast XUV light by laser-dressed helium"
M. B. Gaarde, C. Buth, J. L. Tate, K. J. Schafer, Phys. Rev. A 83, 013419 (2011).

"Vacuum-Induced Processes in Multilevel Atoms"
M. Kiffner, M. A. Macovei, J. Evers, C. H. Keitel, Progress in Optics 55, 85-197 (2010).

"Polarization of the electron and positron produced in combined Coulomb and strong laser fields"
A. Di Piazza, A. I. Milstein, C. Müller, Physical Review A 82, 062110 (2010).

"Low-Energy Structures in Strong Field Ionization Revealed by Quantum Orbits"
T. Yan, S. Popruzhenko, M. J. J. Vrakking, D. Bauer, Physical Review Letters 105, 253002 (2010).

"Measuring photon-photon interactions via photon detection"
M. A. Macovei, Physical Review A 82, 063815 (2010).

"Radiation reaction effects on radiation pressure acceleration"
M. Tamburini, F. Pegoraro, A. Di Piazza, C. H. Keitel, A. Macchi, New Journal of Physics 12, 123005 (2010).

"Intense high-quality medical proton beams via laser fields"
B. J. Galow, Z. Harman, C. H. Keitel, Optics Express 18, 25950-25957 (2010).

"Quantum Radiation Reaction Effects in Multiphoton Compton Scattering"
A. Di Piazza, K. Z. Hatsagortsyan, C. H. Keitel, Physical Review Letters 105, 220403 (2010).

"Ground-state cooling of a nanomechanical resonator coupled to two interacting flux qubits"
K. Xia, J. Evers, Physical Review B 82, 184532 (2010).

"High Harmonic Generation Via ContinuumWave-Packet Interference"
M. C. Kohler, C. Ott, P. Raith, R. Heck, I. Schlegel, C. H. Keitel, T. Pfeifer, Physical Review Letters 105, 203902 (2010).
(see also MPG-Pressemitteilung
pro-physik.de)

"Discovery of a long-lived low-lying isomeric state in 80Ga"
B. Cheal, J. Billowes, M. L. Bissell, K. Blaum, F. C. Charlwood, K. T. Flanagan, D. H. Forest, S. Fritzsche, C. Geppert, A. Jokinen, M. Kowalska, A. Krieger, J. Krämer, E. Mané, I. D. Moore, R. Neugart, G. Neyens, W. Nörtershäuser, M. M. Rajabali, M. Schug, H. H. Stroke, P. Vingerhoets, D. T. Yordanov, M. Zaková, Phys. Rev. C 82 (2010).

"Nuclear effects in atomic transitions"
A. Pálffy, Contemp. Phys. 51, 471-496 (2010).

"Resonant and Near-Threshold Photoionization Cross Sections of Fe14+"
M. C. Simon, J. R. Crespo López-Urrutia, C. Beilmann, M. Schwarz, Z. Harman, S. W. Epp, B. Schmitt, T. M. Baumann, E. Behar, S. Bernitt, R. Follath, R. Ginzel, C. H. Keitel, R. Klawitter, K. Kubicek, V. Mäckel, P. H. Mokler, G. Reichardt, O. Schwarzkopf, J. Ullrich, Phys. Rev. Lett. 105, 183001 (2010).
(see also MPG-Pressemitteilung,
pro-physik.de,
Press release at Astronews,
Physorg.com)

"Observation of Magnetized Soliton Remnants in theWake of Intense Laser Pulse Propagation through Plasmas"
L. Romagnani, A. Bigongiari, S. Kar, S. V. Bulanov, C. Cecchetti, T. Z. Esirkepov, M. Galimberti, R. Jung, T. Liseykina, A. Macchi, J. Osterholz, F. Pegoraro, O. Willi, M. Borghesi, Physical Review Letters 105, 175002 (2010).

"High-energy electron-positron photoproduction cross section close to the end of the spectrum"
A. Di Piazza, A. I. Milstein, Phys. Rev. A 82, 042106 (2010).

"Two-Center Resonant Photoionization"
B. Najjari, A. B. Voitkiv, C. Müller, Phys. Rev. Lett. 105, 153002 (2010).

"Double-slit vacuum polarization effects in ultraintense laser fields"
B. King, A. Di Piazza, C. H. Keitel, Phys. Rev. A 82, 032114 (2010).

"Coherent control of nuclear forward scattering"
J. Evers, A. Pálffy, Journal of Modern Optics 57, 1993-2003 (2010).

"Entanglement dynamics of three-qubit states in noisy channels"
M. Siomau, S. Fritzsche, The European Physical Journal D - Atomic, Molecular, Optical and Plasma Physics 60 (2010).

"Universal quantum Controlled-NOT gate"
M. Siomau, S. Fritzsche, The European Physical Journal D - Atomic, Molecular, Optical and Plasma Physics 60 (2010).

"Origin of Unexpected Low Energy Structure in Photoelectron Spectra Induced by Midinfrared Strong Laser Fields"
C. Liu, K. Z. Hatsagortsyan, Phys. Rev. Lett. 105, 113003 (2010).

"Target effects on the linear polarization of photons emitted in radiative electron capture by heavy ions"
A. N. Artemyev, A. Surzhykov, S. Fritzsche, B. Najjari, A. B. Voitkiv, Phys. Rev. A 82, 022716 (2010).

"Quantum teleportation of four-dimensional qudits"
M. Al-Amri, J. Evers, M. S. Zubairy, Phys. Rev. A 82, 022329 (2010).

"Quantum entanglement in dense multiqubit systems"
M. A. Macovei, J. Evers, C. H. Keitel, J. Mod. Opt. 57, 1287-1292 (2010).

"Complete QED Theory of Multiphoton Trident Pair Production in Strong Laser Fields"
H. Hu, C. Müller, C. H. Keitel, Phys. Rev. Lett. 105, 080401 (2010).

"Determining the Carrier-Envelope Phase of Intense Few-Cycle Laser Pulses"
K. F. Mackenroth, A. Di Piazza, C. H. Keitel, Phys. Rev. Lett. 105, 063903 (2010).

"Real-time observation of valence electron motion"
E. Goulielmakis, Z. Loh, A. With, R. Santra, N. Rohringer, V. S. Yakovlev, S. Zherebtsov, T. Pfeifer, A. M. Azzeer, M. Kling, S. R. Leone, F. Krausz, Nature 466 (2010).

"Isotope effects in the harmonic response from hydrogenlike muonic atoms in strong laser fields"
A. Shahbaz, T. Bürvenich, C. Müller, Phys. Rev. A 82, 013418 (2010).

"Phase modulation induced by cooperative effects in electromagnetically induced transparency"
R. Fleischhaker, T. N. Dey, J. Evers, Physical Review A 82, 013815 (2010).

"Effect of a strong laser field on electron-positron photoproduction by relativistic nuclei"
A. Di Piazza, E. Lötstedt, A. I. Milstein, C. H. Keitel, Phys. Rev. A 81, 062122 (2010).

"Strongly Enhanced Recombination via Two-Center Electronic Correlations"
C. Müller, A. B. Voitkiv, J. R. Crespo López-Urrutia, Z. Harman, Phys. Rev. Lett. 104, 233202 (2010).

"Bound-bound pair production in relativistic collisions"
A. B. Voitkiv, B. Najjari, A. Di Piazza, New Journal of Physics 12, 063011 (2010).

"Bound-bound pair production in relativistic collisions"
A. B. Voitkiv, B. Najjari, A. Di Piazza, New Journal of Physics 12, 063011 (2010).

"Interplay of vacuum-mediated inter- and intra-atomic couplings in a pair of atoms"
S. I. Schmid, J. Evers, Phys. Rev. A 81, 063805 (2010).

"Dressed-Atom Multiphoton Analysis of Anomalous Electromagnetically Induced Absorption"
H. Chou, J. Evers, Phys. Rev. Lett. 104, 213602 (2010).

"Radiation pressure acceleration of ultrathin foils"
A. Macchi, S. Veghini, T. Liseykina, F. Pegoraro, New J. Phys. 12, 045013 (2010).

"Cooling a quantum circuit via coupling to a multiqubit system"
M. A. Macovei, Phys. Rev. A 81, 043411 (2010).

"Science of Extreme Light Infrastructure"
T. Tajima, B. C. Barish, C. P. J. Barty, S. V. Bulanov, P. Chen, J. Feldhaus, J. Hajdu, C. H. Keitel, J. Kieffer, D. Ko, W. Leemans, D. Normand, L. Palumbo, K. Rz??ewski, A. Sergeev, Z. Sheng, F. Takasaki, M. Teshima, AIP Conference Proceedings 1228, 11-35 (2010).

"High-fidelity copies from a symmetric 1 -> 2 quantum cloning machine"
M. Siomau, S. Fritzsche, Eur. Phys. J. D 57 (2010).

"Photoionization of N3 + and Ar8 + in an electron beam ion trap by synchrotron radiation"
M. C. Simon, M. Schwarz, S. W. Epp, C. Beilmann, B. Schmitt, Z. Harman, T. M. Baumann, P. H. Mokler, S. Bernitt, R. Ginzel, S. Higgins, R. Klawitter, K. Kubicek, V. Mäckel, J. Ullrich, J. R. Crespo López-Urrutia, J. Phys. B: At. Mol. Opt. Phys. 43, 065003 (2010).

"Resonant recombination at ion storage rings: a conceptual alternative for isotope shift and hyperfine studies"
C. Brandau, C. Kozhuharov, A. Müller, D. Bernhardt, F. Bosch, D. Boutin, F. J. Currell, C. Dimopoulou, B. Franzke, S. Fritzsche, A. Gumberidze, Z. Harman, U. D. Jentschura, C. H. Keitel, Y. S. Kozhedub, R. Krücken, Y. A. Litvinov, F. Nolden, B. O'Rourke, R. Reuschl, S. E. Schippers, V. Shabaev, U. Spillmann, Z. Stachura, M. Steck, T. Stöhlker, I. I. Tupitsyn, D. F. A. Winters, A. Wolf, Hyperfine Interactions 196, 115-127 (2010).

"Relativistic Attosecond Electron Bunches from Laser-Illuminated Droplets"
T. Liseykina, S. Pirner, D. Bauer, Phys. Rev. Lett. 104, 095002 (2010).

"Squeezing in strong light scattered by a regular structure of atoms"
L. Jin, M. A. Macovei, S. Gong, C. H. Keitel, J. Evers, Opt. Commun. 283, 790-794 (2010).

"Nonperturbative multiphoton electron-positron-pair creation in laser fields"
G. R. Mocken, M. Ruf, C. Müller, C. H. Keitel, Phys. Rev. A 81, 022122 (2010).
(see also Phys. Rev. A Kaleidoscope Images (Feb 2010))

"First Optical Hyperfine Structure Measurement in an Atomic Anion"
A. Fischer, C. Canali, U. Warring, A. Kellerbauer, S. Fritzsche, Phys. Rev. Lett. 104 (2010).

"Single-Cycle Gap Soliton in a Subwavelength Structure"
X. Xie, M. A. Macovei, Phys. Rev. Lett. 104, 073902 (2010).

"Multipartite W states for chains of atoms conveyed through an optical cavity"
D. Gonta, S. Fritzsche, Phys. Rev. A 81 (2010).

"Anharmonic resonance in intense laser-matter interaction: Key to collisionless absorption"
P. Mulser, D. Bauer, AIP Conference Proceedings 1209, 75-78 (2010).

"Measurement of distance and orientation of two atoms in arbitrary geometry"
Q. Gulfam, J. Evers, J. Phys. B-At. Mol. Opt. Phys. 43, 045501 (2010).

"Loading atom lasers by collectivity-enhanced optical pumping"
M. A. Macovei, J. Evers, Phys. Rev. A 81, 013626 (2010).

"A matterless double slit"
B. King, A. Di Piazza, C. H. Keitel, Nature Photonics 4, 92-94 (2010).
(see also Cover of the February 2010 issue of Nature Photonics,
News and Views in Nature Photonics,
MPG-Pressemitteilung,
Press release at the IDW,
Physik Journal 3, 24 (2010) - Pro Physik (in German))

"QED corrections of order alpha(Z alpha)E-2(F) to the hyperfine splitting of P-1/2 and P-3/2 states in hydrogenlike ions"
U. D. Jentschura, V. A. Yerokhin, Phys. Rev. A 81, 012503 (2010).

"Self-energy correction to the hyperfine splitting and the electron g factor in hydrogenlike ions"
V. A. Yerokhin, U. D. Jentschura, Phys. Rev. A 81, 012502 (2010).

"Acoustic solitary wave and breather in molecular magnets via electromagnetically induced transparency"
J. Liu, X. Xie, Y. Wu, EPL 89, 17006 (2010).

"Light propagation: From atomic to nuclear quantum optics"
J. Evers, R. Fleischhaker, A. Pálffy, C. H. Keitel, World Scientific, Singapore (2010).

"Realistic stellar nucleosynthesis studies involving nuclear excitation via atomic-nuclear interactions in high energy density plasma environments"
L. A. Bernstein, M. Wiedeking, A. Kritcher, C. Kozhuharov, C. Brandau, T. Stöhlker, A. Pálffy, C. H. Keitel, V. Meot, G. Gosselin, P. Morel, E. Bauge, P. M. Walker, D. Schneider, LLNL-PROP-424305 (2010).

"Entangled light and matter waves via non-linear interactions"
M. A. Macovei, G. Y. Kryuchkyan, G. Li, Modern optics and photonics : atoms and structured media (2010).

"Relativistic high-order harmonic generation"
M. C. Kohler, K. Z. Hatsagortsyan, Modern optics and photonics : atoms and structured media (2010).

"Photonuclear Physics - Explore nuclei with photons"
A. D. Bandrauk, C. P. J. Barty, D. Habs, C. H. Keitel, J. Schreiber, R. Schützhold, P. G. Thirolf, H. A. Weidenmüller, Extreme Light Infrastructure, Report on the Grand Challenges Meeting, pp. 68-92 (2009).

"Particle physics at ELI"
A. Di Piazza, H. Gies, K. Z. Hatsagortsyan, T. Heinzl, A. Ilderton, C. H. Keitel, M. Marklund, S. D. Moustaizis, C. Müller, N. B. Narozhny, I. Ploumistakis, R. Schützhold, D. Symes, I. Tsohantjis, Extreme Light Infrastructure, Report on the Grand Challenges Meeting, pp. 43-61 (2009).

"Investigation of Vacuum Structure - Towards Schwinger Fields: QED effects and Particle Physics at ELI"
A. Di Piazza, H. Gies, K. Z. Hatsagortsyan, T. Heinzl, A. Ilderton, C. H. Keitel, M. Marklund, S. D. Moustaizis, C. Müller, N. B. Narozhny, I. Ploumistakis, R. Schützhold, D. Symes, I. Tsohantjis, Extreme Light Infrastructure, Report on the Grand Challenges Meeting, pp. 17-42 (2009).

"Isotope Shifts in Dielectronic Recombination: From Stable to In-flight-Produced Nuclei"
C. Brandau, C. Kozhuharov, A. Müller, D. Bernhardt, S. Böhm, F. Bosch, D. Boutin, F. J. Currell, C. Dimopoulou, B. Franzke, A. Gumberidze, Z. Harman, U. D. Jentschura, C. H. Keitel, H. Kluge, Y. S. Kozhedub, R. Krücken, Y. A. Litvinov, F. Nolden, B. O'Rourke, R. Reuschl, S. E. Schippers, V. Shabaev, U. Spillmann, Z. Stachura, M. Steck, T. Stöhlker, I. I. Tupitsyn, D. F. A. Winters, A. Wolf, Journal of Physics: Conference Series 194, 012023 (2009).

"Double-slit experiments in the time-domain"
G. G. Paulus, D. Bauer, Lecture Notes in Physics 789, 303-339 (2009).

"Phase-controlled pulse propagation in media with cross coupling of electric and magnetic probe field component"
R. Fleischhaker, J. Evers, Phys. Rev. A 80, 063816 (2009).

"Ground State Cooling of a Nanomechanical Resonator in the Nonresolved Regime via Quantum Interference"
K. Xia, J. Evers, Phys. Rev. Lett. 103, 227203 (2009).

"Correlated two-photon emission by transitions of Dirac-Volkov states in intense laser fields: QED predictions"
E. Lötstedt, U. D. Jentschura, Phys. Rev. A 80, 053419 (2009).

"Local Hartree-exchange and correlation potential defined by local force equations"
M. Ruggenthaler, D. Bauer, Phys. Rev. A 80, 052502 (2009).

"Intershell trielectronic recombination with K-shell excitation in Kr30+"
C. Beilmann, O. Postavaru, L. Arntzen, R. Ginzel, C. H. Keitel, V. Mäckel, P. H. Mokler, M. C. Simon, H. Tawara, I. I. Tupitsyn, J. Ullrich, J. R. Crespo López-Urrutia, Z. Harman, Phys. Rev. A 80, 050702 (2009).

"Laser-guided relativistic quantum dynamics"
C. Liu, M. C. Kohler, K. Z. Hatsagortsyan, C. Müller, C. H. Keitel, New J. Phys. 11, 105045 (2009).

"Relativistic electron-ion recombination in the presence of an intense laser field"
C. Müller, A. B. Voitkiv, B. Najjari, J. Phys. B-At. Mol. Opt. Phys. 42, 221001 (2009).

"Barrier Control in Tunneling e+-e- Photoproduction"
A. Di Piazza, E. Lötstedt, A. I. Milstein, C. H. Keitel, Phys. Rev. Lett. 103, 170403 (2009).

"On the existence of effective potentials in time-dependent density functional theory"
M. Ruggenthaler, M. Penz, D. Bauer, J. Phys. A-Math. Theor. 42, 425207 (2009).

"Yoctosecond Photon Pulses from Quark-Gluon Plasmas"
A. Ipp, C. H. Keitel, J. Evers, Phys. Rev. Lett. 103, 152301 (2009).
(see also Phys. Rev. Lett.: Editors' suggestion,
Nature: Holy Yocto! (Research Highlight in Nature),
Physics Today: Yoctosecond light pulses from quark-gluon plasmas,
New Scientist: Big-bang plasma-soup flashgun to snap atomic anatomy,
IOP Physicsworld.com: Enter the yoctosecond,
APS Physics (Synopsis): The shortest known optical pulses,
pro-physik.de: Kuerzeste Lichtblitze aus ultraheißer Materie,
Expedition Zukunft: Küuerzeste Lichtblitze von Quarks and Co.,
Oesterreichischer Rundfunk: Neue Methode fuer ultrakurze Lichtblitze,
Wiener Zeitung: Vor Weltrekord fueür kurze Lichtpulse?,
Der Standard: 'Zeitmikroskop' mit einer Aufloesung im Yoktosekunden-Bereich)

"Few-photon electron-positron pair creation by relativistic muon impact on intense laser beams"
S. Müller, C. Müller, Phys. Rev. D 80, 053014 (2009).

"Probing quantum superposition states with few-cycle laser pulses"
X. Xie, M. A. Macovei, M. Kiffner, C. H. Keitel, J. Opt. Soc. Am. B-Opt. Phys. 26, 1912-1917 (2009).

"A real space split operator method for the Klein-Gordon equation"
M. Ruf, H. Bauke, C. H. Keitel, J. Comput. Phys. 228, 9092-9106 (2009).

"Nonperturbative Treatment of Double Compton Backscattering in Intense Laser Fields"
E. Lötstedt, U. D. Jentschura, Phys. Rev. Lett. 103, 110404 (2009).

"High-order harmonic generation in vibrating two-electron molecules"
C. Chirila, M. Lein, Chemical Physics 366, 54-57 (2009).

"Exotic atoms in superintense laser fields"
C. Müller, A. Shahbaz, T. Bürvenich, K. Z. Hatsagortsyan, C. H. Keitel, Eur. Phys. J.-Spec. Top. 175, 187-190 (2009).

"Relativistic (Z?)2 corrections and leading quantum electrodynamic corrections to the two-photon decay rate of ionic states"
B. J. Wundt, U. D. Jentschura, Phys. Rev. A 80, 022505 (2009).

"Efficient Integration of Quantum Mechanical Wave Equations by Unitary Transforms"
H. Bauke, C. H. Keitel, AIP Conf. Proc. 1148, pp. 17-20 (2009).

"Sudden death and birth of entanglement in photonic crystals"
M. Al-Amri, G. Li, R. Tan, M. S. Zubairy, Phys. Rev. A 80, 022314 (2009).

"QED vacuum effects in intense laser fields"
A. Di Piazza, K. Z. Hatsagortsyan, Eur. Phys. J.-Spec. Top. 175, 181-185 (2009).

"Control of entanglement and two-qubit quantum gates with atoms crossing a detuned optical cavity"
D. Gonta, S. Fritzsche, J. Phys. B-At. Mol. Opt. Phys. 42 (2009).

"Three-Dimensional Momentum Imaging of Electron Wave Packet Interference in Few-Cycle Laser Pulses"
R. Gopal, K. Simeonidis, R. Moshammer, T. Ergler, M. Dürr, M. Kurka, K. Kühnel, S. Tschuch, C. Schröter, D. Bauer, J. Ullrich, A. Rudenko, O. Herrwerth, T. Uphues, M. Schultze, E. Goulielmakis, M. Uiberacker, M. Lezius, M. Kling, Phys. Rev. Lett. 103, 053001 (2009).

"Laser-assisted bremsstrahlung and electron-positron pair creation in relativistic laser fields"
E. Lötstedt, AIP Conference Proceedings 1153, 75-82 (2009).

"Canonical transforms and the efficient integration of quantum mechanical wave equations"
H. Bauke, C. H. Keitel, Phys. Rev. E 80, 016706 (2009).

"On the Kohn–Sham density response in a localized basis set"
D. Foerster, P. Koval, J. Chem. Phys 133, 044103 (2009).

"Relativistic Nonperturbative Above-Threshold Phenomena in Strong Laser Fields"
C. Müller, K. Z. Hatsagortsyan, M. Ruf, S. Müller, H. Hetzheim, M. C. Kohler, C. H. Keitel, Laser Phys. 19, 1743-1752 (2009).

"Numerical simulation of harmonics generation by ultrashort laser pulses"
V. Y. Bychenkov, S. M. Garina, G. I. Dudnikova, N. V. Zmitrenko, V. F. Kovalev, T. Liseykina, Mathematical Models and Computer Simulations 1, 503-513 (2009).

"Explanation for the smoothness of the phase in molecular high-order harmonic generation"
C. Chirila, M. Lein, Phys. Rev. A 80, 013405 (2009).

"Two-photon cooling of a nonlinear quantum oscillator"
M. A. Macovei, X. Xie, Opt. Commun. 282, 3930-3933 (2009).

"Spontaneous emission interference in negative-refractive-index waveguides"
G. Li, J. Evers, C. H. Keitel, Phys. Rev. B 80, 045102 (2009).

"Single-Photon Entanglement in the keV Regime via Coherent Control of Nuclear Forward Scattering"
A. Pálffy, C. H. Keitel, J. Evers, Phys. Rev. Lett. 103, 017401 (2009).

"Ion acceleration by petawatt class laser pulses and pellet compression in a fast ignition scenario"
C. Benedetti, P. Londrillo, T. Liseykina, A. Macchi, A. Sgattoni, G. Turchetti, Nucl. Instrum. Methods Phys. Res. Sect. A-Accel. Spectrom. Dect. Assoc. Equip. 606, 89-93 (2009).

"Simultaneous electron capture and bound-free pair production in relativistic collisions of heavy nuclei with atoms"
B. Najjari, A. B. Voitkiv, A. N. Artemyev, A. Surzhykov, Phys. Rev. A 80, 012701 (2009).

"Strong Signatures of Radiation Reaction below the Radiation-Dominated Regime"
A. Di Piazza, K. Z. Hatsagortsyan, C. H. Keitel, Phys. Rev. Lett. 102, 254802 (2009).

"Two-photon double ionization of Ne by free-electron laser radiation: a kinematically complete experiment"
M. Kurka, A. Rudenko, L. Foucar, K. Kühnel, Y. H. Jiang, T. Ergler, T. Havermeier, M. Smolarski, S. Schössler, K. Cole, M. Schöffler, R. Dörner, M. Gensch, S. Düsterer, R. Treusch, S. Fritzsche, A. N. Grum-Grzhimailo, E. V. Gryzlova, N. M. Kabachnik, C. Schröter, R. Moshammer, J. Ullrich, J. Phys. B 42, 141002 (2009).

"Rabi Oscillations and Few-Level Approximations in Time-Dependent Density Functional Theory"
M. Ruggenthaler, D. Bauer, Phys. Rev. Lett. 102, 233001 (2009).

"Multiphoton ionization of atoms and ions by high-intensity X-ray lasers"
S. Popruzhenko, V. D. Mur, V. S. Popov, D. Bauer, J. Exp. Theor. Phys. 108, 947-962 (2009).

"Generation of two-dimensional cluster states by using high-finesse bimodal cavities"
D. Gonta, T. Radtke, S. Fritzsche, Phys. Rev. A 79 (2009).

"Laser-Driven Ultrafast Field Propagation on Solid Surfaces"
K. Quinn, P. Wilson, C. Cecchetti, B. Ramakrishna, L. Romagnani, G. Sarri, L. Lancia, J. Fuchs, A. Pipahl, T. Toncian, O. Willi, R. J. Clarke, D. Neely, M. Notley, P. Gallegos, D. C. Carroll, M. N. Quinn, X. H. Yuan, P. McKenna, T. Liseykina, A. Macchi, M. Borghesi, Phys. Rev. Lett. 102, 194801 (2009).

"Antimatter: Abundant positron production"
C. Müller, C. H. Keitel, Nature Photonics 3, 245-246 (2009).

"Atom microscopy via two-photon spontaneous emission spectroscopy"
S. Qamar, J. Evers, M. S. Zubairy, Phys. Rev. A 79, 043814 (2009).

"Lepton pair production in high-frequency laser fields"
C. Müller, C. C. Deneke, M. Ruf, G. R. Mocken, K. Z. Hatsagortsyan, C. H. Keitel, Laser Physics 19, 791-796 (2009).

"Carrier-envelope-phase-dependent effects of high-order harmonic generation in a strongly driven two-level atom"
P. Huang, X. Xie, X. Lu, J. Li, X. X. Yang, Phys. Rev. A 79, 043806 (2009).

"Electron Transfer Processes to Continuum in Near-Relativistic Ion-Atom Collisions"
S. Hagmann, T. Stöhlker, A. Surzhykov, S. Fritzsche, D. Jakubassa-Amundsen, B. Najjari, A. B. Voitkiv, C. Kozhuharov, J. Ullrich, R. Moshammer, M. Nofal, A. Gumberidze, U. Spillmann, R. Reuschl, S. Heß, S. Trotsenko, F. Bosch, D. Liesen, R. Dörner, H. Rothard, G. Lanzanó, E. de Filippo, AIP Conference Proceedings 1099 (2009).

"Correlated atomic population fluctuations via the environmental reservoir"
M. A. Macovei, Y. Niu, S. Gong, C. H. Keitel, J. Mod. Opt. 56, 704-709 (2009).

"Highlights from particle-in-cell simulations of superintense laser-plasma interactions"
A. Macchi, A. Bigongiari, T. Liseykina, Nuovo Cimento Soc. Ital. Fis. C-Colloq. Phys. 32, 153-156 (2009).

"Theory and simulation of ion acceleration with circularly polarized laser pulses"
A. Macchi, T. Liseykina, S. Tuveri, S. Veghini, C. R. Phys. 10, 207-215 (2009).

"Photon polarization in the two-photon decay of heavy hydrogen-like ions"
A. Surzhykov, T. Radtke, P. Indelicato, S. Fritzsche, Eur. Phys. J.-Spec. Top. 169, 29-34 (2009).

"Recursive algorithm for arrays of generalized Bessel functions: Numerical access to Dirac-Volkov solutions"
E. Lötstedt, U. D. Jentschura, Phys. Rev. E 79, 026707 (2009).

"Ionization Dynamics versus Laser Intensity in Laser-Driven Multiply Charged Ions"
H. Hetzheim, C. H. Keitel, Phys. Rev. Lett. 102, 083003 (2009).

"Radiative electron capture and subsequent radiative decay in collisions of U89+ ions with N-2"
J. J. Wan, C. Z. Dong, X. B. Ding, X. W. Ma, J. Rzadkiewicz, T. Stohlker, S. Fritzsche, Phys. Rev. A 79 (2009).

"Pair Production in Laser Fields Oscillating in Space and Time"
M. Ruf, G. R. Mocken, C. Müller, K. Z. Hatsagortsyan, C. H. Keitel, Phys. Rev. Lett. 102, 080402 (2009).

"Dynamical control of pulse propagation in electromagnetically induced transparency"
M. Kiffner, T. N. Dey, Phys. Rev. A 79, 023829 (2009).

"Laser-induced nonresonant nuclear excitation in muonic atoms"
A. Shahbaz, C. Müller, T. Bürvenich, C. H. Keitel, Nucl. Phys. A 821, 106-117 (2009).

"Virtual resonant states in two-photon decay processes: Lower-order terms, subtractions, and physical interpretations"
U. D. Jentschura, Phys. Rev. A 79, 022510 (2009).

"Coulomb-field-induced conversion of a high-energy photon into a pair assisted by a counterpropagating laser beam"
E. Lötstedt, U. D. Jentschura, C. H. Keitel, New J. Phys. 11, 013054 (2009).

"Quantum time scales in alpha tunneling"
N. Kelkar, H. M. Castañeda Cortés, M. Nowakowski, Europhysics Letters 85, 20006 (2009).

"Robust coherent preparation of entangled states of two coupled flux qubits via dynamic control of the transition frequencies"
K. Xia, M. A. Macovei, J. Evers, C. H. Keitel, Phys. Rev. B 79, 024519 (2009).

"Nonlinear Bethe-Heitler pair creation with attosecond laser pulses at the LHC"
C. Müller, Phys. Lett. B 672, 56-60 (2009).

"Unified Treatment of Even and Odd Anharmonic Oscillators of Arbitrary Degree"
U. D. Jentschura, A. Surzhykov, J. Zinn-Justin, Phys. Rev. Lett. 102, 011601 (2009).

"Fine-structure effects on the polarization of K alpha(1) radiation from heavy, highly-charged ions"
A. Surzhykov, T. Stöhlker, S. Fritzsche, Nucl. Instrum. Methods Phys. Res. Sect. B-Beam Interact. Mater. Atoms 267, 251-253 (2009).

"Breit interaction effects on the K alpha angular distribution following the dielectronic recombination of high-Z ions"
S. Fritzsche, N. M. Kabachnik, A. Surzhykov, T. Stöhlker, Nucl. Instrum. Methods Phys. Res. Sect. B-Beam Interact. Mater. Atoms 267, 257-259 (2009).

"Relativistic quantum dynamics in intense laser fields"
G. R. Mocken, Y. I. Salamin, C. H. Keitel, Springer Series in Chemical Physics 91, 113-132 (2009).

"Relativistic current dynamics investigations by proton probing"
M. Borghesi, K. Quinn, P. Wilson, C. Cecchetti, B. Ramakrishna, L. Romagnani, G. Sarri, L. Lancia, J. Fuchs, A. Pipahl, T. Toncian, O. Willi, D. Corrol, P. Gallegos, M. N. Quinn, X. Xuan, P. McKenna, R. J. Clarke, R. Evans, D. Neely, M. Notley, A. Macchi, T. Liseykina, W. Nazarov, AIP Conference Proceedings 1153, 319-330 (2009).

"Relativistic phenomena in plasma solitons"
F. Pegoraro, M. Borghesi, S. V. Bulanov, F. Califano, D. Farina, T. Liseykina, V. Vshivkov, N. Naumova, K. Nishihara, H. Ruhl, Y. Sentoku, SUSSP schools 60, 231-250 (2009).

"Collisionless heating by intense laser radiation: Routes to irreversibility and anharmonic resonance"
P. Mulser, D. Bauer, Pacific Rim Conference on Lasers and Electro-Optics, CLEO - Technical Digest (2009).

"Progress in Ultrafast Intense Laser Science - Relativistic Quantum Dynamics in Intense Laser Fields"
G. R. Mocken, Y. I. Salamin, C. H. Keitel, Springer Berlin Heidelberg (2008).

"Laser-photon merging in proton-laser collisions"
A. Di Piazza, K. Z. Hatsagortsyan, C. H. Keitel, Phys. Rev. A 78, 062109 (2008).

"Collisionless laser-energy conversion by anharmonic resonance"
P. Mulser, D. Bauer, H. Ruhl, Phys. Rev. Lett. 101, 225002 (2008).

"Four-wave mixing enhanced white-light cavity"
R. Fleischhaker, J. Evers, Phys. Rev. A 78, 051802 (2008).

"Laser Channeling of Bethe-Heitler Pairs"
E. Lötstedt, U. D. Jentschura, C. H. Keitel, Phys. Rev. Lett. 101, 203001 (2008).

"Strong Field Ionization Rate for Arbitrary Laser Frequencies"
S. Popruzhenko, V. D. Mur, V. S. Popov, D. Bauer, Phys. Rev. Lett. 101, 193003 (2008).

"Radiation pressure acceleration by ultraintense laser pulses"
T. Liseykina, M. Borghesi, A. Macchi, S. Tuveri, Plasma Phys. Control. Fusion 50, 124033 (2008).

"Quantum vacuum effects in strong laser beams"
A. Di Piazza, K. Z. Hatsagortsyan, Plasma Phys. Control. Fusion 50, 124035 (2008).

"Revisiting unitarity corrections for electromagnetic processes in collisions of relativistic nuclei"
U. D. Jentschura, K. Hencken, V. G. Serbo, Eur. Phys. J. C 58, 281-289 (2008).

"Parametric and nonparametric magnetic response enhancement via electrically induced magnetic moments"
B. Jungnitsch, J. Evers, Phys. Rev. A 78, 043817 (2008).

"Reexamining blackbody shifts for hydrogenlike ions"
U. D. Jentschura, M. Haas, Phys. Rev. A 78, 042504 (2008).

"Bound-free e+e? pair creation with a linearly polarized laser field and a nuclear field"
C. C. Deneke, C. Müller, Phys. Rev. A 78, 033431 (2008).

"Strong field approximation for systems with Coulomb interaction"
S. Popruzhenko, D. Bauer, J. Mod. Opt. 55, 2573-2589 (2008).

"A systematic study of nuclear photoexcitation with X-ray laser fields"
A. Pálffy, J. Mod. Opt. 55, 2603-2615 (2008).

"Recollision-induced plasmon excitation in strong laser fields"
M. Ruggenthaler, S. Popruzhenko, D. Bauer, Phys. Rev. A 78, 033413 (2008).

"Muon pair creation from positronium in a linearly polarized laser field"
C. Müller, K. Z. Hatsagortsyan, C. H. Keitel, Phys. Rev. A 78, 033408 (2008).

"Angular distribution of the dielectronic satellite lines from relativistic high-Z ions: Multipole-mixing effects"
S. Fritzsche, N. M. Kabachnik, A. Surzhykov, Phys. Rev. A 78, 032703 (2008).

"Angular distributions and angular correlations in sequential two-photon double ionization of atoms"
S. Fritzsche, A. N. Grum-Grzhimailo, E. V. Gryzlova, N. M. Kabachnik, J. Phys. B-At. Mol. Opt. Phys. 41 (2008).

"Muon-Pair Creation by Two X-Ray Laser Photons in the Field of an Atomic Nucleus"
C. Müller, C. C. Deneke, C. H. Keitel, Phys. Rev. Lett. 101, 060402 (2008).

"Ponderomotive acceleration of ions: Circular versus linear polarization"
T. Liseykina, D. Prellino, F. Cornolti, A. Macchi, IEEE Transactions on Plasma Science 36 (2008).

"Polarization correlation in the two-photon decay of atomic hydrogen: nonlocality versus entanglement"
T. Radtke, A. Surzhykov, S. Fritzsche, Eur. Phys. J. D 49, 7-12 (2008).

"Angle-resolved study of the Ar 2p -1 1/23d resonant Auger decay"
S. Osmekhin, S. Fritzsche, A. N. Grum-Grzhimailo, M. Huttula, H. Aksela, S. Aksela, J. Phys. B-At. Mol. Opt. Phys. 41 (2008).

"Coulomb correction to the ionization rate of atoms in high-frequency intense laser fields"
S. Popruzhenko, V. D. Mur, V. S. Popov, Phys. Lett. A 372, 5167-5170 (2008).

"Photon polarization as a probe for quark-gluon plasma dynamics"
A. Ipp, A. Di Piazza, J. Evers, C. H. Keitel, Phys. Lett. B 666, 315-319 (2008).

"Quantum interaction among intense laser beams in vacuum"
A. Di Piazza, K. Z. Hatsagortsyan, Eur. Phys. J.-Spec. Top. 160, 147-155 (2008).

"Nuclear effects in electron capture into highly charged heavy ions"
W. Scheid, A. Pálffy, Z. Harman, C. Kozhuharov, C. Brandau, Proceedings of the XXVII International Workshop on Nuclear Theory (2008).

"Charge states and effective loss cross sections for 33 TeV lead ions penetrating aluminum and gold foils"
A. B. Voitkiv, B. Najjari, A. Surzhykov, J. Phys. B-At. Mol. Opt. Phys. 41, 111001 (2008).

"Harmonic emission from cluster nanoplasmas subject to intense short laser pulses"
S. Popruzhenko, M. Kundu, D. F. Zaretsky, D. Bauer, Phys. Rev. A 77, 063201 (2008).

"Ellipticity effects and the contributions of long orbits in nonsequential double ionization of atoms"
N. I. Shvetsov-Shilovski, S. P. Goreslavski, S. Popruzhenko, W. Becker, Phys. Rev. A 77, 063405 (2008).

"Plasma Jets Driven by Ultraintense-Laser Interaction with Thin Foils"
S. Kar, M. Borghesi, S. V. Bulanov, M. H. Key, T. Liseykina, A. Macchi, A. J. Mackinnon, P. K. Patel, L. Romagnani, A. Schiavi, O. Willi, Phys. Rev. Lett. 100, 225004 (2008).

"Energy absorption and emission of harmonics by clusters subject to intense short laser pulses"
S. Popruzhenko, D. F. Zaretsky, D. Bauer, Las. Phys. Lett. 5, 631-646 (2008).

"Generation of four-partite Greenberger-Horne-Zeilinger and W states by using a high-finesse bimodal cavity"
D. Gonta, S. Fritzsche, T. Radtke, Phys. Rev. A 77 (2008).

"Bremsstrahlung accompanied ? decay of 210Po"
H. Boie, H. Scheit, U. D. Jentschura, F. Köck, M. Lauer, A. I. Milstein, I. Terekhov, D. Schwalm, Changing facets of nuclear structure : proceedings of the 9th International Spring Seminar on Nuclear Physics, Vico Equense, Italy, 20 - 24 May 2007 (2008).

"Inner-shell 2p photoionization and Auger decay of atomic silicon"
K. Jankala, S. Urpelainen, M. Huttula, S. Fritzsche, S. Heinasmaki, S. Aksela, H. Aksela, Phys. Rev. A 77 (2008).

"Laser-driven recollisions generalized to relativistic energies"
M. Verschl, Laser Phys. 18, 598-607 (2008).

"Laser-driven relativistic recollisions"
K. Z. Hatsagortsyan, M. Klaiber, C. Müller, M. C. Kohler, C. H. Keitel, J. Opt. Soc. Am. B-Opt. Phys. 25, B92-B103 (2008).

"Coulomb-corrected quantum trajectories in strong-field ionization"
S. Popruzhenko, G. G. Paulus, D. Bauer, Phys. Rev. A 77, 053409 (2008).

"Laser-driven collisions of electron bunches"
M. Verschl, C. Müller, Opt. Commun. 281, 4352-4357 (2008).

"On the role of the atom-cavity detuning in bimodal cavity experiments"
D. Gonta, S. Fritzsche, J. Phys. B-At. Mol. Opt. Phys. 41 (2008).

"Alignment of heavy few-electron ions following excitation by relativistic Coulomb collisions"
A. Surzhykov, U. D. Jentschura, T. Stöhlker, A. Gumberidze, S. Fritzsche, Phys. Rev. A 77, 042722 (2008).

"Electron self-energy in the presence of a magnetic field: Hyperfine splitting and g factor"
V. A. Yerokhin, U. D. Jentschura, Phys. Rev. Lett. 100, 163001 (2008).

"Electron Self-Energy in the Presence of a Magnetic Field: Hyperfine Splitting and g Factor"
V. A. Yerokhin, U. D. Jentschura, Phys. Rev. Lett. 100, 163001 (2008).

"Fundamental Constants and Tests of Theory in Rydberg States of Hydrogenlike Ions"
U. D. Jentschura, P. J. Mohr, J. N. Tan, B. J. Wundt, Phys. Rev. Lett. 100, 160404 (2008).

"Direct High-Power Laser Acceleration of Ions for Medical Applications"
Y. I. Salamin, Z. Harman, C. H. Keitel, Phys. Rev. Lett. 100, 155004 (2008).
(see also Laser Magazin, S. 30, Ausg. 4, 10.9.2008; "medizin & technik" 05/2008, S. 72
http://jnci.oxfordjournals.org/
http://www.idw-online.de/
http://www.pro-physik.de/
http://www.photonik.de/
http://www.innovations-report.de/)

"Relativistic calculation of the two-photon decay rate of highly excited ionic states"
U. D. Jentschura, A. Surzhykov, Phys. Rev. A 77, 042507 (2008).

"Relativistic time dilation and the spectrum of electrons emitted by 33-TeV lead ions penetrating thin foils"
B. Najjari, A. Surzhykov, A. B. Voitkiv, Phys. Rev. A 77, 042714 (2008).

"Photoemission of a Single-ElectronWave Packet in a Strong Laser Field"
J. B. Peatross, C. Müller, K. Z. Hatsagortsyan, C. H. Keitel, Phys. Rev. Lett. 100, 153601 (2008).

"Electric-dipole-forbidden nuclear transitions driven by super-intense laser fields"
A. Pálffy, J. Evers, C. H. Keitel, Phys. Rev. C 77, 044602 (2008).

"Intrinsic channel closing in strong-field single ionization of H2"
S. Pieper, M. Lein, Phys. Rev. A 77, 041403 (2008).

"Nuclear-resonant electron scattering"
A. Pálffy, Z. Harman, Phys. Rev. A 77, 042704 (2008).

"Nonlinear effects in pulse propagation through Doppler-broadened closed-loop atomic media"
R. Fleischhaker, J. Evers, Phys. Rev. A 77, 043805 (2008).

"Delbrück scattering in combined Coulomb and laser fields"
A. Di Piazza, A. I. Milstein, Phys. Rev. A 77, 042102 (2008).

"Two-photon decays reexamined: cascade contributions and gauge invariance|[see also http://select.iop.org]"
U. D. Jentschura, J. Phys. A: Math. Theor. 41, 155307 (2008).

"High-energy, nuclear, and QED processes in strong laser fields"
C. Müller, A. Di Piazza, A. Shahbaz, T. Bürvenich, J. Evers, K. Z. Hatsagortsyan, C. H. Keitel, Las. Phys. 18, Issue 3, 175-184 (2008).

"Nuclear excitation by electron capture followed by fast x-ray emission"
A. Pálffy, Z. Harman, C. Kozhuharov, C. Brandau, C. H. Keitel, W. Scheid, T. Stöhlker, Phys. Lett. B 661, 330-334 (2008).

"Optimizing the ionization and energy absorption of laser-irradiated clusters"
M. Kundu, D. Bauer, Phys. Plasmas 15, 033303 (2008).

"Spatially entangled atomic deflections in twin-photon light beams"
G. Y. Kryuchkyan, M. A. Macovei, C. H. Keitel, Phys. Rev. A 77, 035603 (2008).

"Passing messages to lonely numbers"
H. Bauke, Comput. Sci. Eng. 10, 32-40 (2008).

"Photon pairs with tailor-made entanglement obtained from the two-photon decay of atomic hydrogen"
T. Radtke, A. Surzhykov, S. Fritzsche, Phys. Rev. A 77, 022507 (2008).

"Structure, time propagation and dissipative terms for resonances|[see also http://select.iop.org]"
U. D. Jentschura, A. Surzhykov, M. Lubasch, J. Zinn-Justin, J. Phys. A 41, 095302 (2008).

"Isotope Shift in the Dielectronic Recombination of Three-Electron ANd57+"
C. Brandau, C. Kozhuharov, Z. Harman, A. Müller, S. E. Schippers, Y. S. Kozhedub, D. Bernhardt, S. Böhm, J. Jacobi, E. W. Schmidt, P. H. Mokler, F. Bosch, H. Kluge, T. Stöhlker, K. Beckert, P. Beller, F. Nolden, M. Steck, A. Gumberidze, R. Reuschl, U. Spillmann, F. J. Currell, I. I. Tupitsyn, V. Shabaev, U. D. Jentschura, C. H. Keitel, A. Wolf, Z. Stachura, Phys. Rev. Lett. 100, 073201 (2008).

"Resonant Interferometric Lithography beyond the Diffraction Limit"
M. Kiffner, J. Evers, M. S. Zubairy, Phys. Rev. Lett. 100, 073602 (2008).
(see also Materials Research Society Bulletin (May 2008)
Phys. Rev. Lett. 100, 073602)

"Coherent hard x rays from attosecond pulse train-assisted harmonic generation"
M. Klaiber, K. Z. Hatsagortsyan, C. Müller, C. H. Keitel, Opt. Lett. 33, 411-413 (2008).

"Exact Solution of the Landau-Lifshitz Equation in a Plane Wave"
A. Di Piazza, Lett. Math. Phys. 83, 305-313 (2008).

"Large contribution of virtual Delbr?ck scattering to the emission of photons by relativistic nuclei in nucleus-nucleus and electron-nucleus collisions"
I. F. Ginzburg, U. D. Jentschura, V. G. Serbo, Eur. Phys. J. C 54, 267-276 (2008).

"FFT-split-operator code for solving the Dirac equation in 2+1 dimensions"
G. R. Mocken, C. H. Keitel, Comput. Phys. Commun. 178, 868-882 (2008).

"Nonstatistical enhancement of the 1s2s2p 4P state in electron transfer in 0.5-1.0-MeV/u C4,5 +He and Ne collisions"
D. Strohschein, D. Rohrbein, T. Kirchner, S. Fritzsche, J. Baran, J. A. Tanis, Phys. Rev. A 77 (2008).

"Quasiclassical description of bremsstrahlung accompanying ? decay including quadrupole radiation"
U. D. Jentschura, A. I. Milstein, I. Terekhov, H. Boie, H. Scheit, D. Schwalm, Phys. Rev. C 77, 014611 (2008).

"Dipole-dipole interaction between orthogonal dipole moments in time-dependent geometries"
S. I. Schmid, J. Evers, Phys. Rev. A 77, 013822 (2008).

"Nonperturbative Vacuum-Polarization Effects in Proton-Laser Collisions"
A. Di Piazza, K. Z. Hatsagortsyan, C. H. Keitel, Phys. Rev. Lett. 100, 010403 (2008).

"Double-resonance g-factor measurements by quantum jump spectroscopy"
W. Quint, B. Nikoobakht, U. D. Jentschura, Pis’ma v ZhETF (2008).

"Group velocity control in the ultraviolet domain via interacting dark-state resonances"
M. Mahmoudi, R. Fleischhaker, M. Sahrai, J. Evers, J. Phys. B: At. Mol. Opt. Phys. 41, 025504 (2008).

"High-energy, nuclear and QED processes in strong laser fields"
C. Müller, A. Di Piazza, A. Shahbaz, T. Bürvenich, J. Evers, K. Z. Hatsagortsyan, C. H. Keitel, Las. Phys. 18, 175-184 (2008).

"Correlated relativistic dynamics and nuclear effects in dielectronic and visible spectra of highly charged ions"
Z. Harman, A. N. Artemyev, J. R. Crespo López-Urrutia, A. J. González Martíne, U. D. Jentschura, C. H. Keitel, V. Mäckel, R. Soria Orts, H. Tawara, I. I. Tupitsyn, J. Ullrich, A. Volotka, NIFS-Proc Series 73, 75-79 (2008).

"Relativistische Quantendynamik in ultrastarken Laserfeldern / Relativistic Quantum Dynamics in Ultra-Strong Laser Fields"
C. Müller, D. Bauer, K. Z. Hatsagortsyan, B. Feuerstein, C. H. Keitel, Forschungsbericht 2008 - Max-Planck-Institut für Kernphysik (2008).

"Influence of molecular vibration on enhancements in high-order above-threshold ionization of hydrogen molecules"
S. Pieper, M. Lein, J. Mod. Opt. 55, 2631-2641 (2008).

"Quantum Control of Interacting Multiatom Systems"
J. Evers, M. Kiffner, C. H. Keitel, AIP Conference Proceedings 963,2, 756-759 (2007).

"Reparameterization invariance of NRQED self-energy corrections and improved theory for excited D states in hydrogenlike systems"
B. J. Wundt, U. D. Jentschura, Phys. Lett. B 659, 571-575 (2007).

"Anomalous transport of macromolecules in solution - A semi-phenomenological Fokker-Planck approach"
A. Uvarov, S. Fritzsche, Eur. Phys. J.-Spec. Top. 151 (2007).

"High-energy Quantum Dynamics in Ultra-Intense Laser Pulses"
C. Müller, G. R. Mocken, K. Z. Hatsagortsyan, C. H. Keitel, AIP Conference Proceedings 963,1, 552-559 (2007).

"Model calculations of photoemission from a surface-deposited fullerene monolayer"
O. Kidun, D. Bauer, N. Fominykh, J. Berakdar, J. Phys. B-At. Mol. Opt. Phys. 40, 4617-4624 (2007).

"Dominance of virtual Delbrück scattering for the photon emission by nuclei in relativistic electron-nucleus and nucleus-nucleus collisions"
I. F. Ginzburg, U. D. Jentschura, V. G. Serbo, Phys. Lett. B 658, 125-129 (2007).

"Applicability of layered sine-Gordon models to layered superconductors: II. The case of magnetic coupling"
I. Nàndori, K. Vad, S. Mészáros, U. D. Jentschura, S. Nagy, K. Sailer, J. Phys.-Condes. Matter 19, 496211 (2007).

"Angular and polarization analysis of x-rays emitted from highly-charged, few-electron ions"
S. Fritzsche, A. Surzhykov, U. D. Jentschura, T. Stöhlker, J. Phys.: Conf. Ser. 88, 012018 (2007).

"Particle physics with a laser-driven positronium atom"
C. Müller, K. Z. Hatsagortsyan, C. H. Keitel, Phys. Lett. B 659, 209-213 (2007).

"Zeeman splitting and g factor of the 1s22s22p2P3/2 and 2P1/2 levels in Ar13+"
R. Soria Orts, J. R. Crespo López-Urrutia, H. Bruhns, A. J. González Martíne, Z. Harman, U. D. Jentschura, C. H. Keitel, A. Lapierre, H. Tawara, I. I. Tupitsyn, J. Ullrich, A. Volotka, Phys. Rev. A 76, 052501 (2007).

"Enhancement of entanglement for two-mode fields generated from four-wave mixing with the help of the auxiliary atomic transition"
G. Li, H. T. Tan, M. A. Macovei, Phys. Rev. A 76, 053827 (2007).

"Isomer Triggering via Nuclear Excitation by Electron Capture"
A. Pálffy, J. Evers, C. H. Keitel, Phys. Rev. Lett. 99, 172502 (2007).

"Extensive Calculations of High-Precision Energy Levels in Hydrogen and Deuterium Through a Least-Squares Adjustment"
E. Le Bigot, U. D. Jentschura, S. A. Kotochigova, P. J. Mohr, B. N. Taylor, Advances in Quantum Chemistry 53, 253-271 (2007).

"Nonperturbative resonant strong field ionization of atomic hydrogen"
M. G. Girju, K. Hristov, O. Kidun, D. Bauer, J. Phys. B-At. Mol. Opt. Phys. 40, 4165-4178 (2007).

"Coherence and correlations in photoinduced auger and fluorescence cascades in atoms"
N. M. Kabachnik, S. Fritzsche, A. N. Grum-Grzhimailo, M. Meyer, K. Ueda, Phys. Rep.-Rev. Sec. Phys. Lett. 451 (2007).

"Reconstruction of an arbitrarily polarized few-cycle laser pulse by two-dimensional streaking"
N. I. Shvetsov-Shilovski, S. P. Goreslavski, S. Popruzhenko, W. Becker, G. G. Paulus, Laser Phys. Lett. 4, 726-733 (2007).

"Harmonic generation from laser-irradiated clusters"
M. Kundu, S. Popruzhenko, D. Bauer, Phys. Rev. A 76, 033201 (2007).

"Electron capture into few-electron heavy ions: Independent particle model"
A. Surzhykov, U. D. Jentschura, T. Stöhlker, S. Fritzsche, Eur. Phys. J. D 46, 27-36 (2007).

"Enhanced recollision dynamics via the combination of antisymmetric wave functions and beyond-dipole effects"
R. Fischer, M. Lein, C. H. Keitel, J. Mod. Opt. 54, 1911-1926 (2007).

"Many-electron effects in 2p photoionization and Auger decay of atomic aluminium"
K. Jankala, S. Fritzsche, M. Huttula, J. Schulz, S. Urpelainen, S. Heinasmaki, S. Aksela, H. Aksela, J. Phys. B-At. Mol. Opt. Phys. 40 (2007).

"Photon splitting in a laser field"
A. Di Piazza, A. I. Milstein, C. H. Keitel, Phys. Rev. A 76, 032103 (2007).

"Electron-ion recombination of SiIV forming SiIII: Storage-ring measurement and multiconfiguration dirac-fock calculations"
E. W. Schmidt, D. Bernhardt, A. Müller, S. E. Schippers, S. Fritzsche, J. Hoffmann, A. S. Jaroshevich, C. Krantz, M. Lestinsky, D. A. Orlov, A. Wolf, D. Lukic, D. W. Savin, Phys. Rev. A 76 (2007).

"Entangled light via nonlinear vacuum-multiparticle interactions"
M. A. Macovei, G. Li, Phys. Rev. A 76, 023818 (2007).

"Momentum distributions in time-dependent density-functional theory: Product-phase approximation for nonsequential double ionization in strong laser fields"
F. Wilken, D. Bauer, Phys. Rev. A 76, 023409 (2007).

"Photorecombination studies of highly charged ions at the storage ring ESR: a progress report"
C. Brandau, C. Kozhuharov, A. Müller, K. Beckert, P. Beller, D. Bernhardt, F. Bosch, S. Böhm, F. J. Currell, A. Gumberidze, Z. Harman, J. Jacobi, P. H. Mokler, F. Nolden, R. Reuschl, S. E. Schippers, E. W. Schmidt, U. Spillmann, Z. Stachura, M. Steck, T. Stöhlker, A. Wolf, J. Phys.: Conf. Ser. 58, 81-86 (2007).

"Interference effects in above-threshold ionization from diatomic molecules: Determining the internuclear separation"
H. Hetzheim, C. F. D. M. Faria, W. Becker, Phys. Rev. A 76, 023418 (2007).

"Bremsstrahlung in ? Decay Reexamined"
H. Boie, H. Scheit, U. D. Jentschura, F. Köck, M. Lauer, A. I. Milstein, I. Terekhov, D. Schwalm, Phys. Rev. Lett. 99, 022505 (2007).

"Unified description of deconfined QCD equation of state"
A. Ipp, K. Kajantie, A. Rebhan, A. Vuorinen, J. Phys. G: Nucl. Part. Phys. 34, S631-S634 (2007).

"Breakdown of the few-level approximation in collective systems"
M. Kiffner, J. Evers, C. H. Keitel, Phys. Rev. A 76, 013807 (2007).

"Laser-induced dynamic radiative corrections in the dressed-state and in the Floquet picture"
G. Y. Kryuchkyan, U. D. Jentschura, J. Evers, C. H. Keitel, J. Mod. Opt. 54, 1481-1495 (2007).

"From useful algorithms for slowly convergent series to physical predictions based on divergent perturbative expansions"
E. Caliceti, M. Meyer-Hermann, P. Ribeca, A. Surzhykov, U. D. Jentschura, Phys. Rep.-Rev. Sec. Phys. Lett. 446, 1-96 (2007).

"Nuclear Signatures in High-Order Harmonic Generation from Laser-Driven Muonic Atoms"
A. Shahbaz, C. Müller, A. Staudt, T. Bürvenich, C. H. Keitel, Phys. Rev. Lett. 98, 263901 (2007).

"Superbunched photons via a strongly pumped near-equispaced multiparticle system"
M. A. Macovei, C. H. Keitel, Phys. Rev. B 75, 245325 (2007).

"Breakdown of the few-level approximation in dipole-dipole interacting systems"
M. Kiffner, J. Evers, C. H. Keitel, Proceedings of SPIE 6603, 1-11 (2007).

"Fully relativistic laser-induced ionization and recollision processes"
M. Klaiber, K. Z. Hatsagortsyan, C. H. Keitel, Phys. Rev. A 75, 063413 (2007).

"Localization of a small collection of fluorescing atoms"
M. A. Macovei, J. Evers, M. S. Zubairy, Proceedings of SPIE 6603, 1-10 (2007).

"Spatial measurements beyond classical limit"
J. Evers, (2007).

"Vacuum fluctuations and nuclear quantum optics in strong laser pulses"
A. Di Piazza, K. Z. Hatsagortsyan, J. Evers, C. H. Keitel, Proceedings of SPIE 6603, 1-11 (2007).

"Quantum interference in light scattering and propagation"
J. Evers, M. Mahmoudi, M. A. Macovei, Proceedings of SPIE 6603, 1-14 (2007).

"Production of light particles by very strong and slowly varying magnetic fields"
G. Calucci, A. Di Piazza, Brazilian J. Phys. 37, 751-753 (2007).

"QED treatment of electron correlation in Li-like ions"
V. A. Yerokhin, A. N. Artemyev, V. Shabaev, Phys. Rev. A 75, 062501 (2007).

"Laser-assisted bremsstrahlung for circular and linear polarization"
S. Schnez, E. Lötstedt, U. D. Jentschura, C. H. Keitel, Phys. Rev. A 75, 053412 (2007).

"Radiative orbital electron capture by the atomic nucleus"
K. Pachucki, U. D. Jentschura, M. Pfützner, Phys. Rev. C 75, 055502 (2007).

"On the applicability of the layered sine–Gordon model for Josephson-coupled high-Tc layered"
I. Nàndori, U. D. Jentschura, S. Nagy, K. Sailer, K. Vad, S. Mészáros, J. Phys.-Condes. Matter 19, 236226 (2007).

"Atom localization and center-of-mass wave-function determination via multiple simultaneous quadrature measurements"
J. Evers, S. Qamar, M. S. Zubairy, Phys. Rev. A 75, 053809 (2007).

"Electron wave-packet dynamics in a relativistic electromagnetic field: 3-D analytical approximation"
J. B. Peatross, C. Müller, C. H. Keitel, Opt. Express 15, 6053-6061 (2007).

"Two–Loop Effects and Current Status of the 4He+ Lamb Shift"
U. D. Jentschura, M. Haas, Can. J. Phys. 85, 531-540 (2007).

"Two-loop QED corrections in few-electron ions"
V. A. Yerokhin, P. Indelicato, V. Shabaev, Can. J. Phys. 85, 521-529 (2007).

"On the inclusion of the Coulomb interaction in the theory of multiphoton ionization"
V. S. Popov, V. D. Mur, S. Popruzhenko, Jetp Lett. 85, 223-226 (2007).

"Nonlinear interaction of strong laser fields in vacuum"
A. Di Piazza, K. Z. Hatsagortsyan, C. H. Keitel, Las. Phys. 17, 4, 345-349 (2007).

"Quantum tunneling through potentials induced by vacuum-multiparticle interactions"
M. A. Macovei, Phys. Rev. A 75, 043803 (2007).

"Influence of Coulomb continuum wave functions in the description of high-order harmonic generation with H-2(+)"
M. Ciappina, C. Chirila, M. Lein, Phys. Rev. A 75, 043405 (2007).

"Two-mode single-atom laser as a source of entangled light"
M. Kiffner, M. S. Zubairy, J. Evers, C. H. Keitel, Phys. Rev. A 75, 033816 (2007).

"Lifetime determination of the Fe XIV 3s23p 2P3/2o metastable level"
G. Brenner, J. R. Crespo López-Urrutia, Z. Harman, P. H. Mokler, J. Ullrich, Phys. Rev. A 75, 032504 (2007).

"Impact of a static magnetic field on high-order harmonic spectra"
R. Fischer, C. H. Keitel, R. Jung, G. Pretzler, O. Willi, Phys. Rev. A 75, 033401 (2007).

"Coherent control in a decoherence-free subspace of a collective multilevel system"
M. Kiffner, J. Evers, C. H. Keitel, Phys. Rev. A 75, 032313 (2007).

"Enhancement of vacuum polarization effects in a plasma"
A. Di Piazza, K. Z. Hatsagortsyan, C. H. Keitel, Phys. Plasmas 14, 032102 (2007).

"Refocussed relativistic recollisions"
M. Verschl, C. H. Keitel, Euro. Phys. Lett. 77, 64004 (2007).

"Correlation and quantum electrodynamic effects on the radiative lifetime and relativistic nuclear recoil in Ar13+ and Ar14+ions"
Z. Harman, U. D. Jentschura, C. H. Keitel, A. Lapierre, R. Soria Orts, J. R. Crespo López-Urrutia, H. Tawara, J. Ullrich, A. N. Artemyev, I. I. Tupitsyn, A. Volotka, V. Shabaev, J. Phys.: Conf. Ser. 58, 133-136 (2007).

"Strongly enhanced high-harmonic generation via antisymmetric ionic states"
R. Fischer, M. Lein, C. H. Keitel, J. Phys. B-At. Mol. Opt. Phys. 40, F113-F119 (2007).

"Competition between radiative recombination and nuclear excitation by electron capture"
A. Pálffy, Z. Harman, A. Surzhykov, W. Scheid, J. Phys.: Conf. Ser. 58, 251-254 (2007).

"Localization of atomic ensembles via superfluorescenc"
M. A. Macovei, J. Evers, C. H. Keitel, Phys. Rev. A 75, 033801 (2007).

"Effects of configuration interaction on the alignment of beryllium-like ions"
A. Surzhykov, U. D. Jentschura, T. Stöhlker, S. Fritzsche, J. Phys.: Conf. Ser. 58, 211-214 (2007).

"Effects of the target polarization on the diagnostics of spin-polarized heavy ions"
A. Surzhykov, S. Fritzsche, T. Stohlker, Radiat. Phys. Chem. 76, 392-396 (2007).

"Gas-solid difference in charge-changing cross sections for bare and H-like nickel ions at 200 MeV/u"
H. Ogawa, H. Geissel, A. Fettouhi, M. Portillo, C. Scheidenberger, V. P. Shevelko, A. Surzhykov, H. Weick, F. Becker, D. Boutin, B. Kindler, R. K. Knöbel, J. Kurcewicz, W. Kurcewicz, Y. A. Litvinov, B. Lommel, G. Münzenberg, W. R. Plaß, N. Sakamoto, J. Stadlmann, H. Tsuchida, M. Winkler, N. Yao, Phys. Rev. A 75 (2007).

"Non-uniform convergence of two-photon decay rates for excited atomic states"
U. D. Jentschura, J. Phys. A-Math. Theor. 40, F223-F227 (2007).

"Harmonium in intense laser fields: excitation, absorption and transparency"
O. Kidun, D. Bauer, J. Phys. B-At. Mol. Opt. Phys. 40, 779-786 (2007).

"Vacuum heating versus skin layer absorption of intense femtosecond laser pulses"
D. Bauer, P. Mulser, Phys. Plasmas 14, 023301 (2007).

"Relativistic classical and quantum dynamics in intense crossed laser beams of various polarizations"
M. Verschl, C. H. Keitel, Phys. Rev. Spec. Top.-Accel. Beams 10, 024001 (2007).

"Relativistic recollisions with two consecutive laser pulses"
M. Verschl, C. H. Keitel, J. Phys. B-At. Mol. Opt. Phys. 40, F69-F76 (2007).

"Strong-Field Spatial Interference in a Tailored Electromagnetic Bath"
M. A. Macovei, J. Evers, G. Li, C. H. Keitel, Phys. Rev. Lett. 98, 043602 (2007).

"Nonsequential Double Recombination in Intense Laser Fields"
P. Koval, F. Wilken, D. Bauer, C. H. Keitel, Phys. Rev. Lett. 98, 043904 (2007).

"Evaluation of Laser-Assisted Bremsstrahlung with Dirac-Volkov Propagators"
E. Lötstedt, U. D. Jentschura, C. H. Keitel, Phys. Rev. Lett. 98, 043002 (2007).

"Photon angular distribution and nuclear-state alignment in nuclear excitation by electron capture"
A. Pálffy, Z. Harman, A. Surzhykov, U. D. Jentschura, Phys. Rev. A 75, 012712 (2007).

"Quantum interference between nuclear excitation by electron capture and radiative recombination"
A. Pálffy, Z. Harman, W. Scheid, Phys. Rev. A 75, 012709 (2007).

"Enhancing superfluorescence via decay interference"
M. A. Macovei, J. Phys. B-At. Mol. Opt. Phys. 40, 387-392 (2007).

"QED, nuclear and high-energy processes in extremely strong laser pulses"
A. Di Piazza, C. Müller, J. Evers, K. Z. Hatsagortsyan, C. H. Keitel, GSI-Report 2007 - 03, 19-25 (2007).

"Nonlinear interaction of strong laser fields in a vacuum"
A. Di Piazza, K. Z. Hatsagortsyan, C. H. Keitel, Laser Phys. 17, 345 (2007).

"Two–Loop Bethe Logarithms for non-S Levels"
U. D. Jentschura, Phys. Rev. A 74, 062517 (2006).

"Light propagation through closed-loop atomic media beyond the multiphoton resonance condition"
M. Mahmoudi, J. Evers, Phys. Rev. A 74, 063827 (2006).

"Collisionless energy absorption in the short-pulse intense laser-cluster interaction"
M. Kundu, D. Bauer, Phys. Rev. A 74, 063202 (2006).

"Relativistic ionization rescattering with tailored laser pulses"
M. Klaiber, K. Z. Hatsagortsyan, C. H. Keitel, Phys. Rev. A 74, 051803 (2006).

"K?1 radiation from heavy, helium–like ions produced in relativistic collisions"
A. Surzhykov, U. D. Jentschura, T. Stöhlker, S. Fritzsche, Phys. Rev. A 74, 052710 (2006).

"Adiabatic Approximation of the Correlation Function in the Density-Functional Treatment of Ionization Processes"
F. Wilken, D. Bauer, Phys. Rev. Lett. 97, 203001 (2006).

"Photoionization broadening of the 1S-2S transition in a beam of atomic hydrogen"
N. Kolachevsky, M. Haas, U. D. Jentschura, M. Herrmann, P. Fendel, M. Fischer, R. Holzwarth, T. Udem, C. H. Keitel, T. W. Hänsch, Phys. Rev. A 74, 052504 (2006).

"Quantum Dot Potentials: Symanzik Scaling, Resurgent Expansions and Quantum Dynamics"
A. Surzhykov, M. Lubasch, J. Zinn-Justin, U. D. Jentschura, Phys. Rev. B 74, 205317 (2006).

"High-order above-threshold ionization in stretched molecules"
C. Chirila, M. Lein, Phys. Rev. A 74, 051401 (2006).

"Distilling two-atom distance information from intensity-intensity correlation functions"
J. Chang, J. Evers, M. S. Zubairy, Phys. Rev. A 74, 043820 (2006).

"Muon pair creation from positronium in a circularly polarized laser field"
C. Müller, K. Z. Hatsagortsyan, C. H. Keitel, Phys. Rev. D 74, 074017 (2006).

"Dynamic nuclear Stark shift in superintense laser fields"
T. Bürvenich, J. Evers, C. H. Keitel, Phys. Rev. C 74, 044601 (2006).

"Enhanced Recollisions for Antisymmetric Molecular Orbitals in Intense Laser Fields"
R. Fischer, M. Lein, C. H. Keitel, Phys. Rev. Lett. 97, 143901 (2006).

"Exploring Relativistic Many-Body Recoil Effects in Highly Charged Ions"
R. Soria Orts, Z. Harman, J. R. Crespo López-Urrutia, A. N. Artemyev, H. Bruhns, A. J. González Martíne, U. D. Jentschura, C. H. Keitel, A. Lapierre, V. Mironov, V. Shabaev, H. Tawara, I. I. Tupitsyn, J. Ullrich, A. Volotka, Phys. Rev. Lett. 97, 103002 (2006).

"Microscopic laser-driven high-energy colliders"
K. Z. Hatsagortsyan, C. Müller, C. H. Keitel, Europhys. Lett. 76, 29-35 (2006).

"Light Diffraction by a Strong Standing Electromagnetic Wave"
A. Di Piazza, K. Z. Hatsagortsyan, C. H. Keitel, Phys. Rev. Lett. 97, 083603 (2006).

"Above-threshold ionization by few-cycle pulses"
D. B. Milosevic, G. G. Paulus, D. Bauer, W. Becker, J. Phys. B 39, R203-R262 (2006).

"Collective coherent population trapping in a thermal field"
M. A. Macovei, Z. Ficek, C. H. Keitel, Phys. Rev. A 73, 063821 (2006).

"Influence of nuclear vibration on harmonic generation in molecules"
C. Chirila, M. Lein, J. Phys. B 39, 437-444 (2006).

"Interference in the resonance fluorescence of two incoherently coupled transitions"
M. Kiffner, J. Evers, C. H. Keitel, Phys. Rev. A 73, 063814 (2006).

"Controlling multiparticle correlations with a strong laser field"
M. F. Dal Col, M. A. Macovei, C. H. Keitel, Opt. Comm. 264, 407-412 (2006).

"Polarization-operator approach to electron-positron pair production in combined laser and Coulomb fields"
A. I. Milstein, C. Müller, K. Z. Hatsagortsyan, U. D. Jentschura, C. H. Keitel, Phys. Rev. A 73, 062106 (2006).

"Quantum electrodynamic corrections to the hyperfine structure of excited S states"
U. D. Jentschura, V. A. Yerokhin, Phys. Rev. A 73, 062503 (2006).

"Gauge-invariant relativistic strong-field approximation"
M. Klaiber, K. Z. Hatsagortsyan, C. H. Keitel, Phys. Rev. A 73, 053411 (2006).

"Benchmarking high-field few-electron correlation and QED contributions in Hg75+ to Hg78+ ions. I. Experiment"
A. J. González Martíne, J. R. Crespo López-Urrutia, J. Braun, G. Brenner, H. Bruhns, A. Lapierre, V. Mironov, R. Soria Orts, H. Tawara, M. Trinczek, J. Ullrich, A. N. Artemyev, Z. Harman, U. D. Jentschura, C. H. Keitel, J. H. Scofield, I. I. Tupitsyn, Phys. Rev. A 73, 052710 (2006).

"Benchmarking high-field few-electron correlation and QED contributions in Hg75+ to Hg78+ ions. II. Theory"
Z. Harman, I. I. Tupitsyn, A. N. Artemyev, U. D. Jentschura, C. H. Keitel, J. R. Crespo López-Urrutia, A. J. González Martíne, H. Tawara, J. Ullrich, Phys. Rev. A 73, 052711 (2006).

"Photon entanglement via incoherent pumping"
M. A. Macovei, P. Bardetschi, (2006).

"Two-photon excitation dynamics in bound two-body Coulomb systemsincluding ac Stark shift and ionization"
M. Haas, U. D. Jentschura, C. H. Keitel, N. Kolachevsky, M. Herrmann, P. Fendel, M. Fischer, T. Udem, R. Holzwarth, T. W. Hänsch, M. O. Scully, G. S. Agarwal, Phys. Rev. A 73, 052501 (2006).

"Anomalous magnetic moments of free and bound leptons"
A. Czarnecki, U. D. Jentschura, K. Pachucki, V. A. Yerokhin, Can. J. Phys. 84, 1-10 (2006).

"Probing Proton Dynamics in Molecules on an Attosecond Time Scale"
S. Baker, J. S. Robinson, C. A. Haworth, H. Teng, R. A. Smith, C. Chirila, M. Lein, J. W. G. Tisch, J. P. Marangos, Science 312, 424-427 (2006).

"Two-electron ionization and stabilization beyond the dipole approximation"
A. Staudt, C. H. Keitel, Phys. Rev. A 73, 043412 (2006).

"Relativistic high-power lasermatter interactions"
Y. I. Salamin, S. Hu, K. Z. Hatsagortsyan, C. H. Keitel, Phys. Rep. 427, 41-155 (2006).

"Nuclear Quantum Optics with X-Ray Laser Pulses"
T. Bürvenich, J. Evers, C. H. Keitel, Phys. Rev. Lett. 96, 142501 (2006).
(see also Physics News Update
Science Vol. 312, p. 661 (5 May 2006) Editors' Choice)

"Harmonic generation from laser-driven vacuum"
A. Di Piazza, K. Z. Hatsagortsyan, C. H. Keitel, AIP Conference Proceedings 827, 436-441 (2006).

"Nonperturbative multiphoton processes and electron-positron pair production"
K. Z. Hatsagortsyan, C. Müller, C. H. Keitel, AIP Conference Proceedings 827, 442-447 (2006).

"Mass measurements and the bound-electron g factor"
U. D. Jentschura, A. Czarnecki, K. Pachucki, V. A. Yerokhin, Int. J. of Mass Spectr. 251, 102-108 (2006).

"Nonlinear Resonance Absorption in the Laser-Cluster Interaction"
M. Kundu, D. Bauer, Phys. Rev. Lett. 96, 123401 (2006).

"Radiative electron capture into high-Z few-electron ions: Alignment of the excited ionic states"
A. Surzhykov, U. D. Jentschura, T. Stöhlker, S. Fritzsche, Phys. Rev. A 73, 032716 (2006).

"Quantum Interference Enforced by Time-Energy Complementarity"
M. Kiffner, J. Evers, C. H. Keitel, Phys. Rev. Lett. 96, 100403 (2006).

"Measurement of the separation between atoms beyond diffraction limit"
J. Chang, J. Evers, M. O. Scully, M. S. Zubairy, Phys. Rev. A 73, 031803 (2006).

"Effective action and phase structure of multi-layer sine-Gordon type models"
U. D. Jentschura, I. Nàndori, J. Zinn-Justin, Ann. Phys. 321, 2647-2659 (2006).

"Strong-field approximation for harmonic generation in diatomic molecules"
C. Chirila, M. Lein, Phys. Rev. A 73, 023410 (2006).

"Geometry-dependent dynamics of two ?-type atoms via vacuum-induced coherences"
J. Evers, M. Kiffner, M. A. Macovei, C. H. Keitel, Phys. Rev. A 73, 023804 (2006).

"Theory of nuclear excitation by electron capture for heavy ions"
A. Pálffy, W. Scheid, Z. Harman, Phys. Rev. A 73, 012715 (2006).

"High-order harmonic generation in vibrating molecules"
C. Chirila, M. Lein, J. Mod. Opt. 53, 113-124 (2006).

"On the validity of the strong field approximation and simple man’s theory"
D. Bauer, D. B. Milosevic, W. Becker, J. Mod. Opt. 53, 135-147 (2006).

"Quantum orbit theory of high-order atomic processes in intense laser fields"
D. B. Milosevic, D. Bauer, W. Becker, J. Mod. Opt. 53, 125-134 (2006).

"Ionization suppression of excited atomic states beyond the stabilization regime"
A. Staudt, C. H. Keitel, J. Briggs, J. Phys. B 39, 633-639 (2006).

"Comparison of classical and second quantized description of the dynamic Stark shift"
M. Haas, U. D. Jentschura, C. H. Keitel, Am. J. Phys. 74, 77-81 (2006).

"Qprop: A Schödinger-solver for intense laseratom interaction"
D. Bauer, P. Koval, Comp. Phys. Comm. 174, 396-421 (2006).

"The physics of collisionless absorption and particle acceleration by superintense laser beams"
P. Mulser, D. Bauer, T. Muth, PROCEEDINGS OF THE SOCIETY OF PHOTO-OPTICAL INSTRUMENTATION ENGINEERS (SPIE) 5975, 97508-97508 (2006).

"The physics of collisionless absorption of intense laser beams in solids and clusters"
P. Mulser, D. Bauer, AIP Conference Proceedings 827, 15-25 (2006).

"Quantum correlations of an atomic ensemble via an incoherent bath"
M. A. Macovei, J. Evers, C. H. Keitel, Phys. Rev. A 72, 063809 (2005).

"Phase-dependent interference mechanisms in a three-level Lambda system driven by a quantized laser field"
J. Evers, J. Mod. Opt. 52, 2699-2712 (2005).

"Magnetic-dipole transition probabilities in B-like and Be-like ions"
I. Tupitsyn, A. Volotka, D. A. Glazov, V. Shabaev, G. Plunien, J. R. Crespo López-Urrutia, A. Lapierre, J. Ullrich, Phys. Rev. A 72, 062503 (2005).

"Nonrelativistic QED approach to the Lamb shift"
U. D. Jentschura, A. Czarnecki, K. Pachucki, Phys. Rev. A 72, 062102 (2005).

"Mechanisms of ultrahigh-order harmonic generation"
M. Lein, Phys. Rev. A 72, 053816 (2005).

"Laser-dressed vacuum polarization in a Coulomb field"
A. I. Milstein, I. Terekhov, U. D. Jentschura, C. H. Keitel, Phys. Rev. A 72, 052104 (2005).

"Calculation of the One and TwoLoop Lamb Shift for Arbitrary Excited Hydrogenic States"
A. Czarnecki, U. D. Jentschura, K. Pachucki, Phys. Rev. Lett. 95, 180404 (2005).

"QED Corrections to the Dynamic Polarizability"
M. Haas, U. D. Jentschura, C. H. Keitel, AIP Conference Proceedings 796, 317 (2005).

"Relativistic Electron Correlation, Quantum Electrodynamics and the Lifetime of the 1s22s22p2P03/2"
A. Lapierre, U. D. Jentschura, J. R. Crespo López-Urrutia, J. Braun, G. Brenner, H. Bruhns, D. Fischer, A. J. González Martíne, Z. Harman, W. R. Johnson, C. H. Keitel, V. Mironov, C. J. Osborne, G. Sikler, R. Soria Orts, H. Tawara, I. I. Tupitsyn, J. Ullrich, A. Volotka, Phys. Rev. Lett. 95, 183001 (2005).

"Precise calculation of transition frequencies of hydrogen and deuterium based on a least-squares analysis"
U. D. Jentschura, S. A. Kotochigova, E. Le Bigot, P. J. Mohr, B. N. Taylor, Phys. Rev. Lett. 95, 163003 (2005).

"Harmonic generation from laser-driven vacuum"
A. Di Piazza, K. Z. Hatsagortsyan, C. H. Keitel, Phys. Rev. D 72, 085005 (2005).

"Rapid refractive index enhancements via laser-mediated collectivity"
M. A. Macovei, C. H. Keitel, J. Phys. B-At. Mol. Opt. Phys. 38, L315-L321 (2005).

"Free-electron quantum signatures in intense laser fields"
M. Mahmoudi, Y. I. Salamin, C. H. Keitel, Phys. Rev. A 72, 033402 (2005).

"Techniques in Analytic Lamb Shift Calculations"
U. D. Jentschura, Mod. Phys. Lett. A 20, 2261-2276 (2005).

"Strong-field approximation for intense-laseratom processes: The choice of gauge"
D. Bauer, D. B. Milosevic, W. Becker, Phys. Rev. A 72, 023415 (2005).

"Thin crystal layers in superstrong laser fields: Dynamics and coherent x-ray generation"
K. Z. Hatsagortsyan, C. H. Keitel, Phys. Rev. A 72, 023812 (2005).

"Renormalization-Group Analysis of Layered Sine-Gordon Type Models"
I. Nàndori, S. Nagy, K. Sailer, U. D. Jentschura, Nucl. Phys. B 725, 467-492 (2005).

"Complete two-loop correction to the bound-electron g factor"
K. Pachucki, A. Czarnecki, U. D. Jentschura, V. A. Yerokhin, Phys. Rev. A 72, 022108 (2005).

"Calculation of Hydrogenic Bethe Logarithms for Rydberg States"
U. D. Jentschura, P. J. Mohr, Phys. Rev. A 72, 012110 (2005).

"Self-energy values for P states in hydrogen and low-Z hydrogenlike ions"
U. D. Jentschura, P. J. Mohr, Phys. Rev. A 72, 014103 (2005).

"Attosecond Double-Slit Experiment"
F. Lindner, M. G. Schätzel, H. Walther, A. Baltuska, E. Goulielmakis, F. Krausz, D. B. Milosevic, D. Bauer, W. Becker, G. G. Paulus, Phys. Rev. Lett. 95, 040401 (2005).

"Irreversible energy gain by linear and nonlinear oscillators"
D. Bauer, P. Mulser, Journal of Physics: Conference Series 11, 169-179 (2005).

"Isospin Dependence in the Odd-Even Staggering of Nuclear Binding Energies"
Y. A. Litvinov, T. Bürvenich, H. Geissel, Y. N. Novikov, Z. Patyk, C. Scheidenberger, F. Attallah, G. Audi, K. Beckert, F. Bosch, M. Falch, B. Franzke, M. Hausmann, T. Kerscher, O. Klepper, H. Kluge, C. Kozhuharov, K. E. G. Löbner, D. G. Madland, J. A. Maruhn, G. Münzenberg, F. Nolden, T. Radon, M. Steck, S. Typel, H. Wollnik, Phys. Rev. Lett. 95, 042501 (2005).

"Some recent advances in bound-state quantum electrodynamics"
U. D. Jentschura, J. Evers, Can. J. Phys. 83, 375-386 (2005).

"Low-frequency-field induced spontaneous-emission interference in a two-level atom placed in an anisotropic photonic crystal"
G. Li, J. Evers, C. H. Keitel, J. Phys. B-At. Mol. Opt. Phys. 38, 1435-1451 (2005).

"Analytical Approach to Wave-Packet Dynamics of Laser-Driven Particles beyond the Dipole Approximation"
M. Verschl, C. H. Keitel, Las. Phys. 15, 529-535 (2005).

"High-precision measurements in few-electron highly charged ions at the Heidelberg Electron Beam Ion Trap (EBIT)"
J. R. Crespo López-Urrutia, J. Braun, G. Brenner, H. Bruhns, I. N. Draganic, A. J. González Martíne, A. Lapierre, V. Mironov, C. J. Osborne, G. Sikler, R. Soria Orts, H. Tawara, J. Ullrich, I. I. Tupitsyn, V. Shabaev, Can. J. Phys. 83, 387-393 (2005).

"Toward high-precision values of the self energy of non-S states in hydrogen and hydrogen-like ions"
E. Le Bigot, U. D. Jentschura, P. Indelicato, P. J. Mohr, Can. J. Phys. 83, 447-454 (2005).

"Emergence of Classical Orbits in Few-Cycle Above-Threshold Ionization of Atomic Hydrogen"
D. Bauer, Phys. Rev. Lett. 94, 113001 (2005).

"Above-threshold ionization beyond the dipole approximation"
M. Klaiber, K. Z. Hatsagortsyan, C. H. Keitel, Phys. Rev. A 71, 033408 (2005).

"Vacuum-mediated incoherent processes in coherently prepared media"
J. Evers, U. D. Jentschura, M. A. Macovei, C. H. Keitel, "Fluctuations and Noise in Photonics and Quantum Optics III", ed. P. R. Hemmer, J. R. Gea-Banacloche, P. Heszler, Sr., M. S. Zubairy, Proceedings of SPIE Vol. 5842 (SPIE, Bellingham, WA) (2005).

"Coherent manipulation of collective three-level systems"
M. A. Macovei, J. Evers, C. H. Keitel, Phys. Rev. A 71, 033802 (2005).

"Attosecond Probing of Vibrational Dynamics with High-Harmonic Generation"
M. Lein, Phys. Rev. Lett. 94, 053004 (2005).

"Multiphoton quantum interference on a dipole-forbidden transition"
U. Akram, J. Evers, C. H. Keitel, J. Phys. B 38, L69-L77 (2005).

"Radiative Corrections to Multi-Level Mollow-Type Spectra"
U. D. Jentschura, J. Evers, C. H. Keitel, Las. Phys. 15, 37-45 (2005).

"Radiation spectra of laser-driven quantum relativistic electrons"
G. R. Mocken, C. H. Keitel, Comp. Phys. Comm. 166, 171-190 (2005).

"Relativistic and radiative energy shifts for Rydberg states"
U. D. Jentschura, E. Le Bigot, J. Evers, P. J. Mohr, C. H. Keitel, J. Phys. B 38, S97-S105 (2005).

"Relativistic and radiative corrections to the Mollow spectrum"
J. Evers, U. D. Jentschura, C. H. Keitel, Phys. Rev. A 70, 062111 (2004).

"Two-Loop Bethe logarithms for higher excited S levels"
U. D. Jentschura, Phys. Rev. A 70, 052108 (2004).

"Emission spectroscopy of highly charged ions in plasma of an electron beam ion trap"
I. N. Draganic, J. R. Crespo López-Urrutia, R. Soria Orts, R. DuBois, V. P. Shevelko, S. Fritzsche, Y. Zou, J. Ullrich, AIP Conference Proceedings 740 (2004).

"Nonrelativistic QED Approach to the Bound-Electron g Factor"
K. Pachucki, U. D. Jentschura, V. A. Yerokhin, Phys. Rev. Lett. 93, 150401 (2004).

"Double-EIT ground-state laser cooling without blue-sideband heating"
J. Evers, C. H. Keitel, Europhys. Lett. 68, 370-376 (2004).

"Magnetic and thermal influences on collective resonance fluorescence"
M. A. Macovei, J. Evers, C. H. Keitel, Europhys. Lett. 68, 391-397 (2004).

"Quantum dynamics of relativistic electrons"
G. R. Mocken, C. H. Keitel, Journal of Computational Physics 199, 558-588 (2004).

"Few-photon electron-positron pair creation in the collision of a relativistic nucleus and an intense x-ray laser beam"
C. Müller, A. B. Voitkiv, N. Grün, Phys. Rev. A 70, 023412 (2004).

"Phase dependence of collective fluorescence via interferences from incoherent pumping"
M. A. Macovei, J. Evers, Optics Communications 240, 379-384 (2004).

"Positronium in Intense Laser Fields"
B. Henrich, K. Z. Hatsagortsyan, C. H. Keitel, Phys. Rev. Lett. 93, 013601 (2004).

"Bound atomic dynamics in the MeV regime"
G. R. Mocken, C. H. Keitel, J. Phys. B: At. Mol. Opt. Phys. 37, L275-L283 (2004).

"Spontaneous-emission suppression via multiphoton quantum interference"
J. Evers, C. H. Keitel, J. Phys. B: At. Mol. Opt. Phys. 37, 2771-2796 (2004).

"New Limits on the Drift of Fundamental Constants from Laboratory Measurements"
M. Fischer, N. Kolachevsky, M. Zimmermann, R. Holzwarth, T. Udem, T. W. Hänsch, M. Abgrall, J. Gruenert, I. Maksimovic, S. Bize, H. Marion, F. Pereira Dos Santos, P. Lemonde, G. Santarelli, P. Laurent, A. Clairon, C. Salomon, M. Haas, U. D. Jentschura, C. H. Keitel, Phys. Rev. Lett. 92, 230802 (2004).

"Influence of molecular structure on double ionization of N2 and O2 by high intensity ultra-short laser pulses"
E. Eremina, X. Liu, H. Rottke, W. Sandner, M. G. Schätzel, A. Dreischuh, G. G. Paulus, H. Walther, R. Moshammer, J. Ullrich, Physical Review Letters 92, 173001 (2004).

"Radiative corrections in laser-dressed atoms: formalism and applications"
U. D. Jentschura, C. H. Keitel, Annals of Physics 310, 1-55 (2004).

"Quantum dynamics beyond the dipole approximation: From two-electron ions to more complex systems"
A. Staudt, G. R. Mocken, M. Haas, C. H. Keitel, "Atoms and Plasmas in Super-Intense Laser Fields" ed. D. Batani, C.J. Joachain and S. Martellucci, SIF Conference Proceedings, Vol. 88, p. 175-190, Societa Italiana die Fisica, Bologna (2004).

"Simulation of atomic quantum dynamics in combined intense laser and weak electric fields"
R. Fischer, A. Staudt, C. H. Keitel, Comput. Phys. Commun. 157, 139-146 (2004).

"Reply to comment on spontaneous-emission suppression on arbitrary atomic transitions"
J. Evers, C. H. Keitel, Phys. Rev. Lett. 92, 159303 (2004).

"Lamb Shift of Laser-Dressed Atomic States"
U. D. Jentschura, J. Evers, M. Haas, C. H. Keitel, Phys. Rev. Lett. 91, 253601 (2003).

"Phase-control of collective quantum dynamics"
M. A. Macovei, J. Evers, C. H. Keitel, Phys. Rev. Lett. 91, 233601 (2003).

"Nonlinear Bound-Free Pair Creation in the Strong Electromagnetic Fields of a Heavy Nucleus and an Intense X-Ray Laser"
C. Müller, A. B. Voitkiv, N. Grün, Physical Review Letters 91, 223601 (2003).

"High Precision Wavelength Measurements of QED-Sensitive Forbidden Transitions in Highly Charged Argon Ions"
I. N. Draganic, J. R. Crespo López-Urrutia, R. DuBois, S. Fritzsche, V. Shabaev, R. Soria Orts, I. I. Tupitsyn, Y. Zou, J. Ullrich, Physical Review Letters 91 (2003).

"Quantum signatures in laser-driven relativistic multiple-scattering"
G. R. Mocken, C. H. Keitel, Phys. Rev. Lett. 91, 173202 (2003).

"Laser-control of collective spontaneous emission"
M. A. Macovei, C. H. Keitel, Phys. Rev. Lett. 91, 123601 (2003).

"Relativistic Calculations of Isotope Shifts in Highly Charged Ions"
I. I. Tupitsyn, V. Shabaev, J. R. Crespo López-Urrutia, I. N. Draganic, R. Soria Orts, J. Ullrich, Physical Review A 68, 022511 (2003).

"Net electron energy gain from a tightly-focused laser beam in vacuum"
Y. I. Salamin, C. H. Keitel, AIP conference proceedings 697, 3-12 (2003).

"The spiral galaxy M33 mapped in the FIR by ISOPHOT. A spatially resolved study of the warm and cold dust."
H. Hippelein, M. Haas, R. Tuffs, D. Lemke, M. Stickel, U. Klaas, H. Völk, Astron. Astrophys. 407, 137-146 (2003).

"Differential rates for multiphoton pair production by an ultrarelativistic nucleus colliding with an intense laser beam"
C. Müller, A. B. Voitkiv, N. Grün, Physical Review A 67, 063407 (2003).

"Stabilization of helium in intense high-frequency laser pulses beyond the dipole approximation"
A. Staudt, C. H. Keitel, Journal of Physics B: Atomic, Molecular and Optical Physics 36, L203-L209 (2003).

"Relativistische Quantendynamik in intensiven Laserfeldern"
C. H. Keitel, Physik Journal 2, 61-65 (2003).

"Quasi-simultaneous double ionization of helium in super-intense high-frequency laser pulses"
A. Staudt, J. Prager, C. H. Keitel, Europhysics letters 62, 691-697 (2003).

"On the high-energy limits for the double-to-single ionization ratio of helium and helium-like ions in collisions with charged and neutral particles"
A. B. Voitkiv, C. Müller, N. Grün, Nuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms 205, 504-507 (2003).

"Multiphoton pair production by a highly charged ion in an intense laser field"
C. Müller, A. B. Voitkiv, N. Grün, Nuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms 205, 306-309 (2003).

"Optimum conditions for electron acceleration using tightly focused laser beams"
Y. I. Salamin, C. H. Keitel, Laser Physics 13, 407-413 (2003).

"Narrow Spectral Features in Resonance Fluorescence in Laser-Driven Atomic Few-Level Systems"
J. Evers, C. H. Keitel, Proceedings of the Summer School in "Ultracold Gases: From Atoms to Molecules", Heidelberg 9-13. Sept. 2002 (Wiley, Heidelberg) (2003).

"Low group velocity of light without an extra driving laser field"
M. Haas, C. H. Keitel, Optics Communications 216, 385-389 (2003).

"Modifying spontaneous emission via interferences from incoherent pump fields"
D. Bullock, J. Evers, C. H. Keitel, Phys. Lett. A 307, 3-12 (2003).

"Relativistic electron dynamics in intense crossed laser beams: Acceleration and Compton harmonics"
Y. I. Salamin, G. R. Mocken, C. H. Keitel, Physical review E 67, 016501 (2003).

"The Spiral Galaxy M33 Mapped in the FIR by ISOPHOT: Spatially Resolved Study of the Warm and Cold Dust."
H. Hippelein, M. Haas, R. Tuffs, D. Lemke, M. Stickel, U. Klaas, H. Völk, Astronomische Nachrichten (2003).

"Laser Induced Non-Sequential Double Ionization Investigated at and Below the Threshold for Electron Impact Ionization"
E. Eremina, X. Liu, H. Rottke, W. Sandner, A. Dreischuh, F. Lindner, F. Grasbon, G. G. Paulus, H. Walther, R. Moshammer, B. Feuerstein, J. Ullrich, Journal of Physics B 36, 3269-3280 (2003).

"Single and crystalized ions in ultra-intense laser pulses"
K. Z. Hatsagortsyan, U. D. Jentschura, C. H. Keitel, AIP Conference Proceedings 634, 71-78 (2002).

"Electron scattering and acceleration by a tightly focused laser beam"
Y. I. Salamin, G. R. Mocken, C. H. Keitel, Phys. Rev. Spec. Top.-Accel. Beams 5, 101301 (2002).

"Two-Loop QED Bound-State Calculations and Squared Decay Rates"
U. D. Jentschura, C. H. Keitel, K. Pachucki, Canadian Journal of Physics 80, 1213-1223 (2002).

"Spontaneous-emission suppression on arbitrary atomic transitions"
J. Evers, C. H. Keitel, Phys. Rev. Lett. 89, 163601 (2002).

"Inhibiting decoherence via ancilla processes"
G. Zeng, C. H. Keitel, Phys. Rev. A 66, 022306 (2002).

"Dark state suppression and narrow fluorescent feature in a laser-driven Lambda atom"
J. Evers, D. Bullock, C. H. Keitel, Optics Communications 209, 173-179 (2002).

"A problematic set of two-loop self-energy corrections"
U. D. Jentschura, J. Evers, C. H. Keitel, K. Pachucki, New J. Phys. 4, 49 (2002).

"Resonant Multiphoton X-ray Optics with Highly Charged Ions"
M. Casu, C. H. Keitel, Europhysics Letters 58, 496-502 (2002).

"Phase-matched high-harmonic generation from laser-driven crystals"
K. Z. Hatsagortsyan, C. H. Keitel, Journal of Physics B: Atomic, Molecular and Optical Physics 35, L175-L180 (2002).

"Laser-induced nonsequential double ionization approaching the relativistic regime"
J. Prager, C. H. Keitel, Journal of Physics B: Atomic, Molecular and Optical Physics 35, L167-L174 (2002).

"Spin and radiation in intense laser fields"
M. Walser, D. J. Urbach, K. Z. Hatsagortsyan, S. Hu, C. H. Keitel, Phys. Rev. A 65, 043410 (2002).

"Electron acceleration by a tightly focused laser beam"
Y. I. Salamin, C. H. Keitel, Phys. Rev. Lett. 88, 095005 (2002).

"Narrow spectral feature in resonance fluorescence with a single monochromatic laser field"
J. Evers, C. H. Keitel, Phys. Rev. A 65, 033813 (2002).

"An arbitrated quantum signature scheme"
G. Zeng, C. H. Keitel, Phys. Rev. A 64, 042312 (2002).

"Coherent x-ray pulse generation in the sub-Ångström regime"
C. H. Keitel, S. Hu, Applied Physics Letters 80, 541-543 (2002).

"Relativistic classical Monte Carlo simulations of stabilization of hydrogenlike ions in intense laser pulses"
L. N. Gaier, C. H. Keitel, Phys. Rev. A 65, 023406 (2002).

"Relativistic laser-particle interaction: From single electrons to multi-particle systems"
G. R. Mocken, Y. I. Salamin, K. Z. Hatsagortsyan, C. H. Keitel, AIP Conference Proceedings 611, 44-55 (2002).

"Ground state laser cooling of trapped atoms using EIT"
J. Eschner, G. Morigi, C. H. Keitel, C. Roos, D. Leibfried, A. Mundt, F. Schmidt-Kaler, R. Blatt, Proceedings of the XV International Conference on Laser Spectroscopy, eds. S. Chu, V. Vuletic, A.J. Kerman, Ch. Chin, World Scientific, Singapore, p. 325 (2002).

"P32 scans across the Dark Cloud L1166(CB236)"
R. Tuffs, P. J. Richards, M. Haas, Proceedings of the Workshop on P32 Oversampled Mapping - ISOPHOT : 12 - 16 February 2001/12 - 16 March 2001, VILSPA ISO Data Centre, Villafranca del Castillo, Madrid, Spain, (VILSPAS), 26 - 30 March 2001, IPAC Infrared Processing and Analysis Center, Pasadena, USA, (IPAC) (2002).

"Cold Dust in M33"
H. Hippelein, M. Haas, D. Lemke, M. Stickel, R. Tuffs, U. Klaas, H. Völk, Proceedings of the Workshop on P32 Oversampled Mapping - ISOPHOT : 12 - 16 February 2001/12 - 16 March 2001, VILSPA ISO Data Centre, Villafranca del Castillo, Madrid, Spain, (VILSPAS), 26 - 30 March 2001, IPAC Infrared Processing and Analysis Center, Pasadena, USA, (IPAC) (2002).

"Nuclear Correlation in Ionization and Harmonic Generation of H2+ in Short Intense Laser Pulses"
W. Qu, Z. Chen, Z. Xu, C. H. Keitel, Phys. Rev. A 65, 013402 (2001).

"Narrow high-frequency spectral features via laser-induced slow spin flips"
M. Walser, C. H. Keitel, Optics Communications 199, 447-451 (2001).

"Relativistic Quantum Optics"
C. H. Keitel, Contemporary Physics 42, 353-363 (2001).

"High-order regime of harmonic generation with two active electrons"
J. Prager, S. Hu, C. H. Keitel, Phys. Rev. A 64, 045402 (2001).

"Electrons and Ions in relativistic Laser Fields"
Y. I. Salamin, M. Walser, S. Hu, C. H. Keitel, Lecture of C.H. Keitel at the summer school in Erice, ed. D. Batani, C.J. Joachain, S. Martellucci, A. N. Chester, (Kluwer Academic/Plenum Press, New York) (2001).

"Geometric and algebraic approach to classical dynamics of a particle with spin"
M. Walser, C. H. Keitel, Letters in Mathematical Physics 55, 63-70 (2001).

"Dynamics of multiply charged ions in intense laser fields"
S. Hu, C. H. Keitel, Phys. Rev. A 63, 053402 (2001).

"Electron acceleration in combined laser and uniform electric fields"
Y. I. Salamin, C. H. Keitel, F. H. M. Faisal, JPhysA 34, 2819-2837 (2001).

"X-ray Amplification by Laser Controlled Coherent Bremsstrahlung"
K. Z. Hatsagortsyan, C. H. Keitel, Phys. Rev. Lett. 86, 2277-2280 (2001).

"Analysis of electron acceleration in a vacuum beat wave"
Y. I. Salamin, C. H. Keitel, Journal of Physics B: Atomic, Molecular and Optical Physics 33, 5057-5076 (2000).

"High harmonic generation beyond the electric dipole approximation"
M. Walser, C. H. Keitel, A. Scrinzi, T. Brabec, Phys. Rev. Lett. 85, 5082-5085 (2000).

"Ground state laser cooling using electromagnetically induced transparency"
G. Morigi, J. Eschner, C. H. Keitel, Phys. Rev. Lett. 85, 4458-4461 (2000).

"Exact analysis of ultrahigh laser-induced acceleration of electrons by cyclotron autoresonance"
Y. I. Salamin, F. H. M. Faisal, C. H. Keitel, Phys. Rev. A 62, 053809 (2000).

"Subcycle high electron acceleration by crossed laser beams"
Y. I. Salamin, C. H. Keitel, Applied Physics Letters 77, 1082-1084 (2000).

"Coherent x-ray generation with laser driven ions"
M. Casu, C. Szymanowski, S. Hu, C. H. Keitel, Journal of Physics B: Atomic, Molecular and Optical Physics 33, L411-L417 (2000).

"Resonance fluorescence in intense laser fields"
D. Browne, C. H. Keitel, Journal of Modern Optics 47, 1307-1337 (2000).

"Amplification without inversion in tailored vacua"
M. Erhard, C. H. Keitel, Optics Communications 179, 517-523 (2000).

"Spin-induced force in intense laser-electron interaction"
M. Walser, C. H. Keitel, Journal of Physics B: Atomic, Molecular and Optical Physics 33, L221-L225 (2000).

"Magnetically induced ionization and rescatterings in intense laser fields"
D. J. Urbach, C. H. Keitel, Phys. Rev. A 61, 043409 (2000).

"Spin Signatures in Intense Laser-Ion Interaction"
S. Hu, C. H. Keitel, Phys. Rev. Lett. 83, 4709-4712 (1999).

"Influence of spin-laser interaction on relativistic harmonic generation"
M. Walser, C. Szymanowski, C. H. Keitel, Europhysics Letter 48, 533-539 (1999).

"Total Fluorescence Inhibition via Incoherent Dressed Population Transfer"
C. H. Keitel, S. Zhu, P. L. Knight, Laser Physics 9, 826-830 (1999).

"Narrowing Spontaneous Emission without Intensity Reduction"
C. H. Keitel, Phys. Rev. Lett. 83, 1307-1310 (1999).

"Hollowing Out Single Ions with High Power Laser Fields"
S. Hu, C. H. Keitel, Europhysics Letters 47, 318-323 (1999).

"Influence of Zitterbewegung on Relativistic Harmonic Generation"
C. Szymanowski, C. H. Keitel, A. Maquet, Laser Physics 9, 133-137 (1999).

"Fluorescence Control through multiple interference mechanisms"
E. Paspalakis, C. H. Keitel, P. L. Knight, Phys. Rev. A 58, 4868-4877 (1998).

"Radiative reaction in ultra intense laser-atom interaction"
C. H. Keitel, C. Szymanowski, P. L. Knight, A. Maquet, Journal of Physics B: Atomic, Molecular and Optical Physics 31, L75-L83 (1998).

"Exponential Gain in Resonant Four-Wave Mixing via Dressed Inversions"
C. H. Keitel, Phys. Rev. A 57, 1412-1416 (1998).

"Mott scattering in strong laser fields"
C. Szymanowski, V. Veniard, R. Taieb, A. Maquet, C. H. Keitel, Phys. Rev. A 56, 3846-3859 (1997).

"Intense Laser-Atom Dynamics with the two-dimensional Dirac Equation"
U. W. Rathe, C. H. Keitel, M. Protopapas, P. L. Knight, Journal of Physics B: Atomic, Molecular and Optical Physics 30, L531-L539 (1997).

"Control of optical properties of materials by atomic coherence and quantum interference effects"
M. A. Martinez, P. R. Herczfeld, L. M. Narducci, C. Samuels, C. H. Keitel, SBMO/IEEE MTTS-S - International Microwave and Optoelectronics Conference, Proceedings, Vols 1 and 2, Ch. 129, 239-44 (1997).

"Quantum Interference Effects in Spontaneous Emission: Dependence of the resonance fluorescence spectrum on the phase of the driving field"
M. A. Martinez, P. R. Herczfeld, C. Samuels, L. M. Narducci, C. H. Keitel, Phys. Rev. A 55, 4483-4491 (1997).

"Strong intracavity and output laser noise reduction via initial atomic coherence"
C. Saavedra, J. C. Retamal, C. H. Keitel, Phys. Rev. A 55, 3802-3812 (1997).

"Atomic physics with super-high intensity lasers"
M. Protopapas, C. H. Keitel, P. L. Knight, Reports on Progress in Physics 60, 389-486 (1997).

"The dressed state picture in quantum coherence and interference"
C. H. Keitel, H. M. Doss, M. Fleischhauer, L. M. Narducci, M. O. Scully, S. Zhu, Zeitschrift für Naturforschung Section A : Journal of Physical Sciences 52, 114-116 (1997).

"Phase of harmonics from strongly driven two-level atoms"
F. I. Gauthey, C. H. Keitel, P. L. Knight, A. Maquet, Phys. Rev. A 55, 615-621 (1997).

"Recollisions and high harmonic generation in high intensity laser fields"
P. L. Knight, M. Protopapas, C. H. Keitel, D. Lappas, U. W. Rathe, E. Paspalakis, A. Patel, Proceedings of the International Conference on Atomic Coherence Effects, Hong Kong (1997).

"Investigation of EIT in Four-Wave Mixing in Krypton"
C. Dorman, C. H. Keitel, P. L. Knight, J. P. Marangos, J. C. Petch, "Frontiers of Quantum Optics and Laser Physics", Proceedings of International Conference on Quantum Optics, Hong Kong, (Springer-Verlag, Berlin) ed. S-Y Zhu, M S Zubairy and M O Scully, pp. 180-183 (1997).

"Ultra-energetic electron ejection in relativistic atom - laser field interaction"
C. H. Keitel, Journal of Physics B: Atomic, Molecular and Optical Physics 29, L873-L880 (1996).

"Relativistic mass shift effects in adiabatic intense laser field stabilization of atoms"
M. Protopapas, C. H. Keitel, P. L. Knight, Journal of Physics B: Atomic, Molecular and Optical Physics 29, L591-L598 (1996).

"Entropic measure of wave-packet spreading and ionization in laser-driven atoms"
J. B. Watson, C. H. Keitel, P. L. Knight, K. Burnett, Phys. Rev. A 54, 729-735 (1996).

"Vacuum modified resonance fluorescence in intense laser fields"
C. H. Keitel, Journal of Modern Optics 43, 1555-1562 (1996).

"Recollisions, bremsstrahlung and attosecond pulses from intense laser fields"
M. Protopapas, D. Lappas, C. H. Keitel, P. L. Knight, Phys. Rev. A 53, R2933-R2936 (1996).

"High harmonic generation in a static magnetic field"
J. Connerade, C. H. Keitel, Phys. Rev. A 53, 2748-2751 (1996).

"Role of electromagnetically induced transparency in resonant 4-wave-mixing schemes"
J. C. Petch, C. H. Keitel, P. L. Knight, J. P. Marangos, Phys. Rev. A 53, 543-561 (1996).

"Quantum signatures in strong field physics"
C. H. Keitel, J. B. Watson, P. L. Knight, K. Burnett, Coherence and Quantum Optics VII, Proceedings of the 7th Rochester Conference , eds. J. Eberly, L. Mandel and E. Wolf, p. 535 (Plenum Press, New York and London) (1996).

"High harmonic generation from strongly driven two-level atoms"
F. I. Gauthey, C. H. Keitel, P. L. Knight, A. Maquet, Annual Report 1995-96, TR-96-025, Central Laser Facilities, Rutherford Appleton Laboratory, ed. S. Rose (1996).

"The Wehrl entropy and atoms in intense laser fields"
C. H. Keitel, J. B. Watson, V. Bužek, K. Burnett, P. L. Knight, Annual Report 1995-96, TR-96-025, Central Laser Facilities, Rutherford Appleton Laboratory, ed. S. Rose (1996).

"Can electronic wavepackets generate attosecond pulses of light?"
P. L. Knight, M. Protopapas, D. Lappas, C. H. Keitel, acta physica slovaca 46, 289 (1996).

"Non-accelerator particle physics"
H. V. Klapdor-Kleingrothaus, A. Staudt, (1996).

"Quantum signatures in the stabilization dynamics"
J. B. Watson, C. H. Keitel, P. L. Knight, K. Burnett, Phys. Rev. A 52, 4023-4028 (1995).

"High Harmonic Generation as a Recollision Process"
P. L. Knight, C. H. Keitel, K. Burnett, J. B. Watson, Ultrafast Processes in Spectroscopy, Proceedings of the IXth International Symposium on Ultrafast Processes in Spectroscopy, Trieste, Italy, Plenum Press, Ch. 148, pp 305-9, ed. O. Svelto, S. De Silvestri and G. Denardo (1995).

"The Role of Electromagnetically Induced Transparency in Resonant FWM Schemes with Two Strong Driving Fields"
J. C. Petch, J. P. Marangos, C. H. Keitel, P. L. Knight, Proceedings of the International Conference on Lasing without Inversion, Changchun, China, ed. S.Y. Zhu and J. Gao (1995).

"Role of initial coherence in the generation of harmonics and sidebands from a strongly driven two-level atom"
F. I. Gauthey, C. H. Keitel, P. L. Knight, A. Maquet, Phys. Rev. A 52, 525-540 (1995).

"Resonance fluorescence in a tailored vacuum"
C. H. Keitel, P. L. Knight, L. M. Narducci, M. O. Scully, Optics Communications 118, 143-153 (1995).

"Switching Between Rayleigh-like and Lorentzian Lineshapes of the Dispersion in Driven Two-level Atoms"
C. Szymanowski, C. H. Keitel, B. J. Dalton, P. L. Knight, Journal of Modern Optics 42, 985-1003 (1995).

"Sampling entropies and operational phase-space measurement II: Detection of quantum coherences"
V. Bužek, C. H. Keitel, P. L. Knight, Phys. Rev. A 51, 2594-2601 (1995).

"Sampling entropies and operational phase-space measurement I: General formalism"
V. Bužek, C. H. Keitel, P. L. Knight, Phys. Rev. A 51, 2575-2593 (1995).

"Origin of the sub-natural line-narrowing effect in resonance fluorescence"
C. H. Keitel, L. M. Narducci, M. O. Scully, Appl. Phys. B: Lasers O. 60, 153-154 (1995).

"Monte Carlo classical simulations of ionization and harmonic generation in the relativistic domain"
C. H. Keitel, P. L. Knight, Phys. Rev. A 51, 1420-1430 (1995).

"Subnatural linewidth in large optical fields"
L. M. Narducci, C. H. Keitel, G. Oppo, M. O. Scully, AIP Conference Proceedings 328, 328-328 (1995).

"Super-Intense field physics: What is classical and what is quantum?"
J. B. Watson, C. H. Keitel, P. L. Knight, K. Burnett, Annual Report 1994-95, TR-95-025, page 71, Central Laser Facilities, Rutherford Appleton Laboratory, ed. S. Rose (1995).

"Enhancing the index of refraction under convenient conditions"
C. Szymanowski, C. H. Keitel, Journal of Physics B: Atomic, Molecular and Optical Physics 27, 5795-5812 (1994).

"Sub-natural linewidth and other curious effects of atomic coherence"
L. M. Narducci, C. H. Keitel, G. Oppo, M. O. Scully, Coherent states: Past, Present, and Future, page 331-343, Proceedings of the International symposium on coherent states, Oak Ridge, TN, June 14-17 1993, 1994 World Scientific (1994).

"Relativistic High-Harmonic Generation"
C. H. Keitel, P. L. Knight, K. Burnett, Europhysics Letters 24, 539-544 (1993).

"Two mechanisms for inversionless amplification in four-level atoms with Raman pumping"
C. H. Keitel, O. A. Kocharovskaya, L. M. Narducci, M. O. Scully, S. Zhu, H. M. Doss, Phys. Rev. A 48, 3196-3202 (1993).

"Lasing without inversion: More gain for less pain"
C. H. Keitel, P. L. Knight, Opto & Laser Europe 7, 39-43 (1993).

"Free-electron lasing without inversion by interference of momentum states"
G. Kurizki, M. O. Scully, C. H. Keitel, Phys. Rev. Lett. 70, 1433-1436 (1993).

"Atoms in Super-Intense Fields: Stabilization, Ionization and High-Harmonic Generation"
P. L. Knight, M. Protopapas, C. H. Keitel, S. Vivirito, K. Burnett, V. C. Reed, S. C. Rae, ’Super-Intense Laser-Atom Physics’, NATO ASI Series, Series B: Physics Vol. 316, Ch.41, pp. 111-127, eds. by B Piraux, A. L’Huillier and K Rzazewski (Plenum Press, New York and London) (1993).

"Lasing without inversion: Interference of radiatively broadened resonances in dressed atomic systems"
M. Fleischhauer, C. H. Keitel, L. M. Narducci, M. O. Scully, S. Zhu, M. S. Zubairy, Optics Communications 94, 599-608 (1992).

"Quantum theory of laser emission from driven three-level atoms"
A. S. Manka, C. H. Keitel, S. Zhu, M. Fleischhauer, L. M. Narducci, M. O. Scully, Optics Communications 94, 174-182 (1992).

"Resonantly enhanced refractive index without absorption via atomic coherence"
M. Fleischhauer, C. H. Keitel, M. O. Scully, Q. C. Su, B. T. Ulrich, S. Zhu, Phys. Rev. A 46, 1468-1487 (1992).

"Measuring information via Glauber’s Q-representation"
C. H. Keitel, K. Wódkiewicz, NASA Conference Publication 3219, 259-265 (1992).

"Enhancing the index of refraction without absorption: Phaseonium versus a mixture of two-level atoms"
M. O. Scully, T. W. Hänsch, M. Fleischhauer, C. H. Keitel, S. Zhu, "Physics and Probability", Essays in honour of Edwin T. Jaynes, Cambridge Press, Ch.23, pp.73-80, edited by W. T. Grandy and P. W. Milonni, following the Jaynes Symposium in Laramie, Wyoming, 17-19 May 92 (1992).

"On the information entropy of squeezed states and the entropic uncertainty relation"
C. H. Keitel, K. Wódkiewicz, Phys. Lett. A 167, 151-160 (1992).

"Triggered Superradiance"
C. H. Keitel, M. O. Scully, G. Süssmann, Phys. Rev. A 45, 3242-3249 (1992).

"Lasing without inversion in a simple model of a three-level laser with microwave coupling"
H. Fearn, C. H. Keitel, M. O. Scully, S. Zhu, Optics Communications 87, 323-330 (1992).

"Lasing without inversion and enhancement of the index of refraction via interference of incoherent pump processes"
M. Fleischhauer, C. H. Keitel, M. O. Scully, Q. C. Su, Optics Communications 87, 109-114 (1992).

"Sub-natural linewidth and other coherent phenomena in driven multilevel systems"
L. M. Narducci, M. O. Scully, C. H. Keitel, S. Zhu, Proceedings of the International Conference Laser '91, San Diego, 9-14 Dec. 91 (1991).

"Physical origin of the gain in a four-level model of a Raman driven laser without inversion"
L. M. Narducci, M. O. Scully, C. H. Keitel, S. Zhu, H. M. Doss, Optics Communications 86, 324-332 (1991).

"Atomic coherence via quantum Interference of incoherent processes"
M. Fleischhauer, C. H. Keitel, Foundations of Quantum mechanics, Conference on the Foundations of Quantum Mechanics, Santa Fe 27-31 May 91, Singapore: World Scientific 1992, p. Ch.41, 342-8, eds. T.D. Black, M.M. Nieto, H.S. Pilloff, M.O. Scully and R.M. Sinclair (1991).

"A simple model of a laser without inversion"
L. M. Narducci, H. M. Doss, P. Ru, M. O. Scully, S. Zhu, C. H. Keitel, Optics Communications 81, 379-384 (1991).

"Laser-driven Thomson scattering for the generation of ultra-bright multi-MeV gamma-ray beams"
G. Sarri, D. J. Corvan, J. M. Cole, W. Schumaker, A. Di Piazza, H. Ahmed, M. Yeung, Z. Zhao, C. Harvey, C. H. Keitel, K. Krushelnick, S. P. D. Mangles, Z. Najmudin, A. G. R. Thomas, M. Zepf, Proceedings of SPIE 9514, 95140W (0000).

"Robust signatures of quantum radiation reaction with an electron beam in a focused laser pulse"
J. Li, K. Z. Hatsagortsyan, Proceedings of SPIE 9515, 95150W1 (0000).

"Particle beams in ultrastrong laser fields: direct laser acceleration and radiation reaction effects"
Y. I. Salamin, J. Li, K. Z. Hatsagortsyan, M. Tamburini, A. Di Piazza, C. H. Keitel, Institute of Physics Conference Series 594, 012018 (0000).

"Teilchenphysik ohne Beschleuniger"
H. V. Klapdor-Kleingrothaus, A. Staudt, (0000).

"Fano Resonances in the Time Domain"
A. Kaldun, C. Ott, V. Stooß, A. Fischer, A. Blättermann, T. Ding, P. Raith, K. Meyer, M. Laux, J. Evers, C. H. Keitel, C. H. Greene, T. Pfeifer, Journal of Physics: Conference Series 635, 092079 (0000).

"High Field Physics and QED Experiments at ELI-NP"
I. Turcu, F. Negoita, D. Jaroszynski, P. McKenna, S. Balascuta, D. Ursescu, I. Dancus, M. Cernaianu, M. Tataru, P. Ghenuche, D. Stutman, A. Boianu, M. Risca, M. Toma, C. Petcu, G. Acbas, S. Yoffe, A. Noble, B. Ersfeld, E. Brunetti, R. Capdessus, C. Murphy, C. Ridgers, D. Neely, S. P. D. Mangles, R. J. Gray, A. G. R. Thomas, J. G. Kirk, A. Ilderton, M. Marklund, D. Gordon, B. Hafizi, D. Kaganovich, J. Palastro, E. D’Humieres, M. Zepf, G. Sarri, H. Gies, F. Karbstein, J. Schreiber, G. Paulus, B. Dromey, C. Harvey, A. Di Piazza, C. H. Keitel, M. Kaluza, S. Gales, N. Zamfir, Romanian Reports in Physics 68, S145-S231 (0000).






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