www.mpi-hd.mpg.de

Theory Division

Theoretical Quantum Dynamics and Quantum Electrodynamics

 

www.mpg.de

Publications - Theory Division Christoph H. Keitel


Some recent publications (click title to pull paper or contact us for a reprint):

"Quantum teleportation of high-dimensional atomic ensemble states"
M. Al-Amri, J. Evers, M. Ikram, M. S. Zubairy, J. Phys. B: At. Mol. Opt. Phys. 45, 095502, 8pp (2012).

"Peak intensity measurement of relativistic lasers via nonlinear Thomson scattering"
O. Har-Shemesh, A. Di Piazza, Opt. Lett. Vol. 37, Issue 8, 1352-1354 (2012).

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

"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. 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, Vol. 231, No. 2, pp. 454–464 (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. Macovei, A. 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. Macovei, J. Evers, Phys. Rev. B 84, 184510 (2011).

"Dense Monoenergetic Proton Beams from Chirped Laser-Plasma Interaction"
B. 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).

"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. 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.: Editor's suggestion
APS Physics (Synopsis)
MPIK-Pressemitteilung
IDW-Pressemitteilung)

"Relativistic three-body recombination with the QED vacuum"
H. Hu, C. Müller, Phys. Rev. Lett. 107, 090402 (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. Kryuchkyan, K. Z. Hatsagortsyan, Phys. Rev. Lett. 107, 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, Physics Letters B, Vol. 702, 383-387 (2011).

"Accelerating the Fourier split operator method via graphics processing units"
H. Bauke, C. H. Keitel, Computer Physics Communications 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, Phys. Rev. Lett. 107, 023002 (2011).
(see also Phys. Rev. Lett.: Editor's 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. Voitkiv, Phys. Rev. Lett. 107, 013001 (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, J. Phys. B 44, 095402 (2011).

"Coherent control of the cooperative branching ratio for nuclear x-ray pumping"
A. Pálffy, C. H. Keitel, J. Evers, Phys. Rev. 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, EPL 94, 14002 (2011).

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

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

"Attochirp-free high-order harmonic generation"
M. C. Kohler, C. H. Keitel, K. Z. Hatsagortsyan, Optics Express, Vol. 19, Issue 5, pp. 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 (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).

"Vacuum-Induced Processes in Multilevel Atoms"
M. Kiffner, M. 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. Milsteyn, C. Müller, Phys. Rev. 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, Phys. Rev. Lett. 105, 253002 (2010).

"Measuring photon-photon interactions via photon detection"
M. Macovei, Phys. Rev. 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 (14pp) (2010).

"Intense high-quality medical proton beams via laser fields"
B. Galow, Z. Harman, C. H. Keitel, Optics Express, Vol. 18, Issue 25, pp. 25950-25957 (2010).

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

"Ground-state cooling of a nanomechanical resonator coupled to two interacting flux qubits"
K. Xia, J. Evers, Phys. Rev. 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, Phys. Rev. Lett. 105, 203902 (2010).
(see also Presseinformation by the Max Planck Society (in German)
Pro Physik (in German))

"Nuclear effects in atomic transitions"
A. Pálffy, Contemporary Physics, Volume 51, Issue 6, 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. Epp, B. Schmitt, T. M. Baumann, E. Behar, S. Bernitt, R. Follath, R. Ginzel, C. H. Keitel, R. Klawitter, K. Kubiček, V. Mäckel, P. H. Mokler, G. Reichardt, O. Schwarzkopf, J. Ullrich, Phys. Rev. Lett. 105, 183001 (2010).

"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, Phys. Rev. Lett. 105, 175002 (2010).

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

"Two-Center Resonant Photoionization"
B. Najjari, A. 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 (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).

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

"Complete QED Theory of Multiphoton Trident Pair Production in Strong Laser Fields"
H. Hu, C. Müller, C. H. Keitel, PRL 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).

"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, Phys. Rev. A 82 (2010).

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

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

"Bound–bound pair production in relativistic collisions"
A. Voitkiv, B. Najjari, A. Di Piazza, New J. Phys. 12 (2010).

"Bound–bound pair production in relativistic collisions"
A. 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 (2010).

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

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

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

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

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

"Single-Cycle Gap Soliton in a Subwavelength Structure"
X. Xie, M. Macovei, Phys. Rev. Lett. 104, 073902 (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. Macovei, J. Evers, Phys. Rev. A 81, 013626 (2010).

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

"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(R) (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. 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. Milsteyn, C. H. Keitel, Phys. Rev. Lett. 103, 170403 (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: 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)

"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).

"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. Macovei, M. Kiffner, C. H. Keitel, JOSA B, Vol. 26, Issue 10, pp. 1912-1917 (2009).

"A real space split operator method for the Klein–Gordon equation"
M. Ruf, H. Bauke, C. H. Keitel, Journal of Computational Physics Volume 228, Issue 24 (2009).

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

"Relativistic (Zα)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).

"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).

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

"Two-photon cooling of a nonlinear quantum oscillator"
M. Macovei, X. Xie, Optics Communications Volume 282, Issue 19 (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, NIMA, Volume 606, Issues 1-2 (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).

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

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

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

"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, Nuclear Physics A Volume 821, Issues 1-4 (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).

"Robust coherent preparation of entangled states of two coupled flux qubits via dynamic control of the transition frequencies"
K. Xia, M. 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, Physics Letters B Volume 672, Issue 1 (2009).

"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(R) (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).

"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 (2008).

"A systematic study of nuclear photoexcitation with X-ray laser fields"
A. Pálffy, JMO, V55, I 16 September 2008, p2603-2615 (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).

"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).

"Photon polarization as a probe for quark–gluon plasma dynamics"
A. Ipp, A. Di Piazza, J. Evers, C. H. Keitel, Physics Letters B Volume 666, Issue 4 (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, Laser Physics Letters V5 I9, P631 - 646 (2008).

"Laser-driven recollisions generalized to relativistic energies"
M. Verschl, Laser Physics, Volume 18, Number 5 (2008).

"Laser-driven relativistic recollisions"
K. Z. Hatsagortsyan, M. Klaiber, C. Müller, M. C. Kohler, C. H. Keitel, JOSA B, Vol. 25, Issue 7 (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, Optics Communications Vol. 281, Issue 17 (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).

"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/)

"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. Milsteyn, 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, Laser Physics (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, Physics Letters B - Volume 661, Issue 4 (2008).

"Optimizing the ionization and energy absorption of laser-irradiated clusters"
M. Kundu, D. Bauer, Phys. Plasmas - Volume 15 - Issue 3 (2008).

"Spatially entangled atomic deflections in twin-photon light beams"
G. Kryuchkyan, M. Macovei, C. H. Keitel, Phys. Rev. A 77, 035603 (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: Math. Theor. 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, Optics Letters, Vol. 33, Issue 4, pp. 411-413 (2008).

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

"Large contribution of virtual Delbrück 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, Computer Physics Communications (2008).

"Quasiclassical description of bremsstrahlung accompanying α decay including quadrupole radiation"
U. D. Jentschura, A. I. Milsteyn, 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 (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).

"Reparameterization invariance of NRQED self-energy corrections and improved theory for excited D states in hydrogenlike systems"
B. J. Wundt, U. D. Jentschura, jphysletb V659 I 3 (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, jphysletb (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.: Condens. Matter 19 496211 (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 Martínez, 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).

"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, Elsevier Advances in Quantum Chemistry V53 (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).

"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, JMO, Vol. 54, I13 (2007).

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

"Entangled light via nonlinear vacuum-multiparticle interactions"
M. 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).

"Bremsstrahlung in α Decay Reexamined"
H. Boie, H. Scheit, U. D. Jentschura, F. Köck, M. Lauer, A. I. Milsteyn, 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. Kryuchkyan, U. D. Jentschura, J. Evers, C. H. Keitel, Journal of Modern Optics, V 54, Issue 10 (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, ScienceDirect Physics Reports (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. Macovei, C. H. Keitel, Phys. Rev. B 75, 245325 (2007).

"Fully relativistic laser-induced ionization and recollision processes"
M. Klaiber, K. Z. Hatsagortsyan, C. H. Keitel, Phys. Rev. A 75, 063413 (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.: Condens. 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, Optics Express, Vol. 15, Issue 10 (2007).

"Two–Loop Effects and Current Status of the 4He+ Lamb Shift"
U. D. Jentschura, M. Haas, Canadian Journal of Physics, Vol 85, Number 5 (2007).

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

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

"Localization of atomic ensembles via superfluorescenc"
M. Macovei, J. Evers, C. H. Keitel, Phys. Rev. A 75, 033801 (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. ST 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. 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. Macovei, J. Phys. B: At. Mol. Opt. Phys. 40 387-392 (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).

"Kα1 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).

"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 (2006).

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

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

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

"Above-threshold ionization by few-cycle pulses"
D. B. Milošević, G. G. Paulus, D. Bauer, W. Becker, J. Phys. B: At. Mol. Opt. Phys (2006).

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

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

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

"Benchmarking high-field few-electron correlation and QED contributions in Hg75+ to Hg78+ ions. I. Experiment"
A. J. González Martínez, 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 (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 Martínez, H. Tawara, J. Ullrich, Phys. Rev. A 73 (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 (2006).

"Anomalous magnetic moments of free and bound leptons"
A. Czarnecki, U. D. Jentschura, K. Pachucki, V. A. Yerokhin, Can. J. Phys. V 84, Number S2 (2006).

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

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

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

"Mass measurements and the bound-electron g factor"
U. D. Jentschura, A. Czarnecki, K. Pachucki, V. A. Yerokhin, science direct (2006).

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

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

"Effective action and phase structure of multi-layer sine-Gordon type models"
U. D. Jentschura, I. Nàndori, J. Zinn-Justin, Annals of Physics (2006).

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

"Geometry-dependent dynamics of two Λ-type atoms via vacuum-induced coherences"
J. Evers, M. Kiffner, M. 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 (2006).

"High-order harmonic generation in vibrating molecules"
C. Chirilă, M. Lein, Journal of Modern Optics (2006).

"On the validity of the strong field approximation and simple man's theory"
D. Bauer, D. B. Milošević, W. Becker, J. Mod. Opt. (2006).

"Quantum orbit theory of high-order atomic processes in intense laser fields"
D. B. Milošević, D. Bauer, W. Becker, Journal of Modern Optics (2006).

"Ionization suppression of excited atomic states beyond the stabilization regime"
A. Staudt, C. H. Keitel, J. Briggs, Journal of Physics B (2006).

"Comparison of classical and second quantized description of the dynamic Stark shift"
M. Haas, U. D. Jentschura, C. H. Keitel, AJP (2006).

"Qprop: A Schrödinger-solver for intense laser–atom interaction"
D. Bauer, P. Koval, Computer Physics Communications, Volume 174, Issue 5 (2006).

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

"Phase-dependent interference mechanisms in a three-level Λ system driven by a quantized laser field"
J. Evers, Journal of Modern Optics (2005).

"Nonrelativistic QED approach to the Lamb shift"
U. D. Jentschura, A. Czarnecki, K. Pachucki, PHYSICAL REVIEW A (2005).

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

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

"Calculation of the One– and Two–Loop Lamb Shift for Arbitrary Excited Hydrogenic States"
A. Czarnecki, U. D. Jentschura, K. Pachucki, Phys. Rev. Lett. (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 Martínez, 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. (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, Physical Review Letters (2005).

"Rapid refractive index enhancements via laser-mediated collectivity"
M. Macovei, C. H. Keitel, Journal of Physics B (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, Modern Physics Letters A (2005).

"Strong-field approximation for intense-laser–atom processes: The choice of gauge"
D. Bauer, D. B. Milošević, W. Becker, Phys. Rev. A (2005).

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

"Renormalization-Group Analysis of Layered Sine-Gordon Type Models"
I. Nàndori, S. Nagy, K. Sailer, U. D. Jentschura, Nuclear Physics B, Vol. 725, Issue 3 , (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 (2005).

"Attosecond Double-Slit Experiment"
F. Lindner, M. G. Schätzel, H. Walther, A. Baltuška, E. Goulielmakis, F. Krausz, D. B. Milošević, 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, J. Phys.: Conf. Ser. 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. (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 (2005).

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

"Coherent manipulation of collective three-level systems"
M. 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 (2005).

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

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

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

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

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

"Quantum dynamics of relativistic electrons"
G. R. Mocken, C. H. Keitel, J. of Comp. Phys. 199, 558 (2004).

"Phase dependence of collective fluorescence via interferences from incoherent pumping"
M. Macovei, J. Evers, Opt. Comm. (2004).

"Positronium in Intense Laser Fields"
B. Henrich, K. Z. Hatsagortsyan, C. H. Keitel, Phys. Rev. Lett. 93, 13601 (2004).

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

"Spontaneous-emission suppression via multiphoton quantum interference"
J. Evers, C. H. Keitel, J. Phys. B 37, 2171 (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).

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

"Simulation of atomic quantum dynamics in combined intense laser and weak electric fields"
R. Fischer, A. Staudt, C. H. Keitel, Comp. Phys. Comm. 157, 139 (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. Macovei, J. Evers, C. H. Keitel, Phys. Rev. Lett. 91, 233601 (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. Macovei, C. H. Keitel, Phys. Rev. Lett. 91, 123601 (2003).

"Stabilization of helium in intense high-frequency laser pulses beyond the dipole approximation"
A. Staudt, C. H. Keitel, J. Phys. B 36, L203 (2003).

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

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

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

"Modifying spontaneous emission via interferences from incoherent pump fields"
D. Bullock, J. Evers, C. H. Keitel, Phys. Lett. A 307, 8 (2003).

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

"Electron scattering and acceleration by a tightly focused laser beam"
Y. I. Salamin, G. R. Mocken, C. H. Keitel, Phys Rev ST Accel Beams 5, 101301 (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, Opt. Comm. 209, 173 (2002).

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

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

"Phase-matched high-harmonic generation from laser-driven crystals"
K. Z. Hatsagortsyan, C. H. Keitel, J. Phys. B Lett. 35, L175 (2002).

"Laser-induced nonsequential double ionization approaching the relativistic regime"
J. Prager, C. H. Keitel, J. Phys. B Lett. 35, L167 (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 65, 042312 (2002).

"Coherent x-ray pulse generation in the sub-Ångström regime"
C. H. Keitel, S. Hu, Appl. Phys. Lett. 80, 541 (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).

"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. A65, 013402 (2001).

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

"Relativistic Quantum Optics"
C. H. Keitel, Contemp. Phys. 42, 353 (2001).

"High-order regime of harmonic generation with two active electrons"
J. Prager, S. Hu, C. H. Keitel, Phys. Rev. A64, 045402 (2001).

"Geometric and algebraic approach to classical dynamics of a particle with spin"
M. Walser, C. H. Keitel, Lett. Math. Phys. 55, 63 (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, J. Phys. A 34, 2819 (2001).

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

"Analysis of electron acceleration in a vacuum beat wave"
Y. I. Salamin, C. H. Keitel, J. Phys. B33, 5057 (2000).

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

"Ground state laser cooling using electromagnetically induced transparency"
G. Morigi, J. Eschner, C. H. Keitel, Phys. Rev. Lett. 85, 4458 (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. A62, 53809 (2000).

"Subcycle high electron acceleration by crossed laser beams"
Y. I. Salamin, C. H. Keitel, Appl. Phys. Lett. 77, 1082 (2000).

"Coherent x-ray generation with laser driven ions"
M. Casu, C. Szymanowski, S. Hu, C. H. Keitel, J. Phys. B Lett. 33, 411 (2000).

"Resonance fluorescence in intense laser fields"
D. Browne, C. H. Keitel, J. Mod. Opt. 47, 1307 (2000).

"Amplification without inversion in tailored vacua"
M. Erhard, C. H. Keitel, Opt. Comm. 179, 517 (2000).

"Spin-induced force in intense laser-electron interaction"
M. Walser, C. H. Keitel, J. Phys. B Lett. 33, 221 (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, Europhys. Lett, 48 (8), pp. 533-539 (1999).

"Total Fluorescence Inhibition via Incoherent Dressed Population Transfer"
C. H. Keitel, S. Y. Zhu, P. L. Knight FRS, Las. Phys. 9, 826 (1999).

"Narrowing Spontaneous Emission without Intensity Reduction"
C. H. Keitel, Phys. Rev. Lett. 83, 13071310 (1999).

"Hollowing Out Single Ions with High Power Laser Fields"
S. Hu, C. H. Keitel, Europhys. Lett., 47 (3), pp. 318-323 (1999).

"Influence of Zitterbewegung on Relativistic Harmonic Generation"
C. Szymanowski, C. H. Keitel, A. Maquet, Las. Phys. 9, 133 (1999).

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

"Radiative reaction in ultra intense laser-atom interaction"
C. H. Keitel, C. Szymanowski, P. L. Knight FRS, A. Maquet, J. Phys. B Lett. 31 L75 (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 (1997).

"Intense Laser-Atom Dynamics with the two-dimensional Dirac Equation"
U. W. Rathe, C. H. Keitel, M. Protopapas, P. L. Knight FRS, J. Phys. B 30, L531 (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 (1997).

"Atomic physics with super-high intensity lasers"
M. Protopapas, C. H. Keitel, P. L. Knight FRS, Rep. Prog. Phys. 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. Y. Zhu, Z. f. Naturforsch. 52a, 114 (1997).

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

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

"Relativistic mass shift effects in adiabatic intense laser field stabilization of atoms"
M. Protopapas, C. H. Keitel, P. L. Knight FRS, J. Phys. B Lett. 29, L591 (1996).

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

"Vacuum modified resonance fluorescence in intense laser fields"
C. H. Keitel, Journal of Modern Optics Volume 43, Number 8 (1996).

"Recollisions, bremsstrahlung and attosecond pulses from intense laser fields"
M. Protopapas, D. Lappas, C. H. Keitel, P. L. Knight FRS, 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 FRS, J. P. Marangos, Phys.Rev. A53, 543 (1996).

"Quantum signatures in the stabilization dynamics"
J. B. Watson, C. H. Keitel, P. L. Knight FRS, K. Burnett, Phys. Rev. A 52, 4023–4028 (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 FRS, A. Maquet, Phys.Rev. A52, 525 (1995).

"Resonance fluorescence in a tailored vacuum"
C. H. Keitel, P. L. Knight FRS, L. M. Narducci, M. O. Scully, Optics Communications Volume 118, Issues 1-2 (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 FRS, J.Mod.Opt. 42, 985 (1995).

"Sampling entropies and operational phase-space measurement II: Detection of quantum coherences"
V. Bužek, C. H. Keitel, P. L. Knight FRS, 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 FRS, 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. B60, 153 (1995).

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

"Enhancing the index of refraction under convenient conditions"
C. Szymanowski, C. H. Keitel, J. Phys. B: At. Mol. Opt. Phys. 27 (1994).

"Relativistic High Harmonic Generation"
C. H. Keitel, P. L. Knight FRS, K. Burnett, Europhysics Letters Vol. 24 (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. Y. Zhu, H. M. Doss, Phys. Rev. Volume 48, Number 4 (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).

"Lasing without inversion: Interference of radiatively broadened resonances in dressed atomic systems"
M. Fleischhauer, C. H. Keitel, L. M. Narducci, M. O. Scully, S. Y. Zhu, M. S. Zubairy, Optics Communications Volume 94, Issue 6 (1992).

"Quantum theory of laser emission from driven three-level atoms"
A. S. Manka, C. H. Keitel, S. Y. Zhu, M. Fleischhauer, L. M. Narducci, M. O. Scully, Opt. Comm., 94, 174 (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. Y. Zhu, Phys. Rev. A 46, 1468–1487 (1992).

"On the information entropy of squeezed states and the entropic uncertainty relation"
C. H. Keitel, K. Wodkiewicz, Physics Letters A Volume 167, Issue 2 (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. Y. Zhu, Optics Communications Volume 87, 323 (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 Volume 87, Issue 3 (1992).

"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. Y. Zhu, H. M. Doss, Optics Communications Volume 86, Issues 3-4 (1991).

"A simple model of a laser without inversion"
L. M. Narducci, H. M. Doss, P. Ru, M. O. Scully, S. Y. Zhu, C. H. Keitel, Optics Communications Volume 81, Issue 6 (1991).






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