Theory Division |
Theoretical Quantum Dynamics and Quantum Electrodynamics
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| Some
recent publications (click title to pull paper or contact us for a
reprint): |
| "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" |
| F. Mackenroth, A. Di Piazza,
Phys. Rev. A 83, 032106 (2011). |
| "Attochirp-free
high-order harmonic generation" |
| M. C. Kohler, C. H. Keitel, K. Z. Hatsagortsyan, Opt. Express 19, 4411-4420 (2011). |
| "Breit interaction
in dielectronic recombination of hydrogenlike uranium" |
| D. Bernhardt, C. Brandau, Z.
Harman, C. Kozhuharov, A. Müller, W. Scheid, S. 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. Spillman, Z. Stachura, M. Steck, Th. Stöhlker, Phys. Rev. A 83, 020701 (2011). |
| "Phenomenological
model
of
multiphoto-production
of
charged
pion pairs on the proton" |
| A. Dadi, C. Müller, Phys.
Lett. B 697, 142 (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). |
| "Spin
correlations in nonperturbative electron–positron pair creation by
petawatt laser pulses colliding with a TeV proton beam" |
| T.-O. Müller, C.
Müller, Phys. Lett. B 696, 201 (2011). |
| "Bound–bound
pair production in relativistic collisions" |
| A. B. Voitkiv, B. Najjari, A. Di
Piazza, New Journal of Physics 12, 063011
(8pp)
(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). |
| "Polarization of
the electron and positron produced in combined Coulomb and strong laser
fields" |
| A. Di Piazza, A. I. Milstein, C.
Müller, Phys. Rev. A 82,
062110 (2010). |
| "Vacuum-Induced
Processes
in
Multilevel
Atoms" |
| M. Kiffner, M. A. Macovei, J.
Evers, C. H. Keitel, Progress in Optics 55, 85-197 (2010). |
| "Low-Energy
Structures in Strong Field Ionization Revealed by Quantum Orbits" |
| T.-M. Yan, S. V. Popruzhenko, M.
J. J. Vrakking, D. Bauer, Phys. Rev. Lett. 105, 253002 (2010). |
| "Measuring
photon-photon interactions via photon detection" |
| M. A. Macovei, Phys. Rev. A 82, 063815 (2010). |
| "Intense high-quality
medical proton beams via laser fields" |
| B. J. 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). |
| "Coherent
control of nuclear forward scattering" |
| A. Pálffy, J. Evers,
Journal of Modern Optics 57,
1993 (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)) |
| "Observation
of Magnetized Soliton Remnants in theWake of Intense Laser Pulse
Propagation through Plasmas" |
| L. Romagnani, A. Bigongiari, S.
Kar, S.V. Bulanov, C. A. Cecchetti, T. Zh. Esirkepov, M. Galimberti, R. Jung, T.V. Liseykina, A. Macchi, J. Osterholz, F. Pegoraro, O. Willi, M. Borghesi, Phys. Rev. Lett. 105, 175002 (2010). |
| "Nuclear effects
in atomic transitions" |
| A. Pálffy, Contemporary
Physics, Vol. 51, Issue 6, 471
(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.
L. 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). (see also Presseinformation by the Max Planck Society (in German) Pro Physik (in German) Press release at Astronews (in German) Physorg.com) |
| "Two-Center
Resonant Photoionization" |
| B. Najjari, A. B. Voitkiv, C.
Müller, Phys. Rev. Lett. 105,
153002
(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). |
| "Double-slit
vacuum polarization effects in ultraintense laser fields" |
| B. King, A. Di Piazza, C. H.
Keitel, Phys. Rev. A 82,
032114 (2010). |
| "Quantum teleportation of four-dimensional qudits" |
| M. Al-Amri, J. Evers, M. S. Zubairy, Phys. Rev. A 82, 022329 (2010). |
| "Phase modulation induced by cooperative effects in electromagnetically induced transparency" |
| R. Fleischhaker, T. N. Dey, J. Evers, Phys. Rev. A 82, 013815 (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
entanglement in dense multiqubit systems" |
| M. Macovei, J. Evers, C. H.
Keitel, Journal of Modern Optics 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" |
| 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.J. Bürvenich, C. Müller, Phys. Rev. A 82, 013418 (2010). |
| "Dressed-atom
multiphoton analysis of anomalous electromagnetically induced
absorption" |
| H.-S. Chou, J. Evers, Phys. Rev.
Lett. 104, 213602 (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 J. Phys. 12,
063011 (2010). |
| "Radiation
Pressure Acceleration of Ultrathin Foils" |
| A. Macchi, S. Veghini, T. V.
Liseykina, F. Pegoraro, New J. Phys. 12,
045013
(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. W. Epp, C. Beilmann, B. L. Schmitt, Z. Harman, T. M. Baumann, P. H. Mokler, S. Bernitt, R. Ginzel, S. G. Higgins, C. H. Keitel, R. Klawitter, K. Kubiček 1, V. Mäckel, J. Ullrich, J. R. Crespo López-Urrutia, J. Phys. B: At. Mol. Opt. Phys. 43, 065003 (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)) |
| "Relativistic
Attosecond
Electron
Bunches
from
Laser-Illuminated
Droplets" |
| T. V. Liseykina, S. Pirner, D. Bauer, Phys. Rev. Lett. 104, 095002 (2010). |
| "Single-Cycle
Gap
Soliton
in
a
Subwavelength
Structure" |
| X.-T. 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). |
| (see also Phys. Rev. A Kaleidoscope Images (Jan 2010)) |
| "QED corrections
of order α(Zα)2EF to the hyperfine splitting of P1/2 and P3/2 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). |
| "Squeezing in
strong light scattered by a regular structure of atoms" |
| L. L. Jin, M. Macovei, S. Q.
Gong, C. H. Keitel, J. Evers, Opt. Comm. 283, 790 (2010). |
| (contribution to the special
issue ''Quo vadis quantum optics'' dedicated to the memory of Prof. K.
Wodkiewicz) |
| "A matterless double
slit" |
| B. King, A. Di Piazza, C. H.
Keitel, Nature Photonics 4, 92
(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)) |
| "Interplay of vacuum-mediated inter- and intraatomic couplings in a pair of atoms" |
| S. I. Schmid, J. Evers, Phys. Rev. A 81, 063805 (2010). |
| "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. H.
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). |
| "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). |
| "Laser-guided relativistic quantum dynamics" |
| C. Liu, M. C. Kohler, K. Z.
Hatsagortsyan, C. Müller, C. H. Keitel, New J. Phys. 11, 105045 (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 Physik Journal (Vol. 9, No. 1, p. 20): Schneller gehts nicht (Jan 2010) 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: Kürzeste Lichtblitze aus ultraheißer Materie Expedition Zukunft: Kürzeste Lichtblitze von Quarks and Co. Österreichischer Rundfunk: Neue Methode für ultrakurze Lichtblitze Wiener Zeitung: Vor Weltrekord für kurze Lichtpulse? Der Standard: 'Zeitmikroskop' mit einer Auflösung im Yoktosekunden-Bereich) |
| "Barrier
Control in Tunneling e+-e- Photoproduction" |
| A. Di Piazza, E. Lötstedt,
A. I. Milstein, C. H. Keitel, Phys. Rev. Lett. 103, 170403 (2009). |
| "Highlights from
particle-in-cell simulations of superintense laser-plasma interactions" |
| A. Macchi, A. Bigongiari, T.V.
Liseikina, Il nuovo cimento, Vol. 32, No. 2, 153-156 (2009). |
| "A real space split
operator method for the Klein–Gordon equation" |
| M. Ruf, H. Bauke, C. H. Keitel,
J. Comp. Phys. 228, 9092
(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). |
| "Numerical
simulation of harmonics generation by ultrashort laser pulses" |
| V. Yu. Bychenkov, S. M. Garina,
G. I. Dudnikova, N. V. Zmitrenko, V. F. Kovalev, T. V. Liseikina,
Mathematical Models and Computer Simulations, Vol.1, No. 4, 503-513
(2009). |
| "Few-photon
electron-positron pair creation by relativistic muon impact on intense
laser beams" S. J. Müller, C. Müller, Phys. Rev. D 80, 053014 (2009). |
| "Probing
quantum
superposition
states
with
few-cycle
laser
pulses" X.-T. Xie, M. Macovei, M. Kiffner, C. H. Keitel, JOSA B 26, 1912-1917 (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, Th. Ergler, M. Dürr, M. Kurka, K.-U. Kühnel, S.
Tschuch, C.-D. Schröter, D. Bauer, J. Ullrich, A. Rudenko, O.
Herrwerth, Th. Uphues, M. Schultze, E. Goulielmakis, M. Uiberacker, M.
Lezius, and M. F. Kling, Phys. Rev. Lett. 103, 053001 (2009). (see also Informationsdienst Wissenschaft (July 27, 2009) and pro-physik (July 29, 2009) and innovations report (July 28, 2009)) |
| "Canonical transforms and the efficient integration of quantum mechanical wave equations" |
| H. Bauke, C. H. Keitel, Phys. Rev. E 80, 016706 (2009). |
| "Multiphoton ionization of atoms and ions by high-intensity X-ray lasers" |
| S. V. Popruzhenko, V. D. Mur, V. S. Popov, D. Bauer, JETP, 108, 947 (2009). |
| "Relativistic
Nonperturbative Above-Threshold Phenomena in Strong Laser
Fields" C. Müller, K. Z. Hatsagortsyan, M. Ruf, S. J. Müller, H. G. Hetzheim, M. C. Kohler, C. H. Keitel, Laser Phys. 19, 1743 (2009). |
| (special memorial issue for Prof. Delone) |
| "Spontaneous
emission interference in negative-refractive-index waveguides" G.-X. Li, J. Evers, C. H. Keitel, Phys. Rev. B 80, 045102 (2009). |
| "Two-photon cooling of a nonlinear quantum oscillator" |
| Mihai A. Macovei, Xiao-Tao Xie, Opt. Comm. 281, 3930 (2009). |
| "Single-Photon Entanglement in the keV Regime via Coherent Control of Nuclear Forward Scattering" |
| Adriana Pálffy, Christoph H. Keitel, Jörg Evers, Phys. Rev. Lett. 103, 017401 (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. A. Wilson, C. A. 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. V. Liseykina, A. Macchi, and M. Borghesi, Phys. Rev. Lett. 102, 194801 (2009). |
| "Antimatter: Abundant positron production" |
| C. Müller, C. H. Keitel, Nature Photonics 3, 245 (2009). |
| "Theory and simulation of ion acceleration with circularly polarized laser pulses" |
| A. Macchi, T. V. Liseikina, S. Tuveri, S. Veghini, Comptes Rendus Physique 10, 207 (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. Deneke, M. Ruf, G. R. Mocken, K. Z. Hatsagortsyan, C. H. Keitel, Laser Phys. 19, 791 (2009). |
| "Ion acceleration by petawatt class laser pulses and pellet compression in a fast ignition scenario" |
| C. Benedetti, P. Londrillo, T.V. Liseykina, A. Macchi, A. Sgattoni, G. Turchetti, NIMA 606, 1-2, 89 (2009). |
| "Correlated atomic
population fluctuations via the environmental reservoir" Mihai Macovei, Yueping Niu, Shangqing Gong, Christoph 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. G. Hetzheim, C. H. Keitel, Phys. Rev. Lett. 102, 083003 (2009). |
| "Dynamical control
of pulse propagation in electromagnetically induced transparency" M. Kiffner, T. N. Dey, Phys. Rev. A 79, 023829 (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). |
| "Laser-induced
nonresonant
nuclear
excitation
in
muonic
atoms"
A. Shahbaz, C. Müller, T. J. Bürvenich, C. H. Keitel, Nucl. Phys. A 821, 106 (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).
|
| "Virtual
resonant states in two-photon decay processes: Lower-order terms,
subtractions, and physical interpretations" |
| U. D. Jentschura, Phys. Rev.
A 79, 022510 (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, Phys. Lett. B 672, 56 (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). |
| "Laser-photon
merging in proton-laser collisions" |
| A. Di Piazza, K. Z.
Hatsagortsyan, C. H. Keitel, Phys. Rev. A 78, 062109 (2008). |
| "Quantum
interaction among intense laser beams in vacuum" |
| A. Di Piazza, K. Z.
Hatsagortsyan, The Europ. Phys. J. ST 160,
147
(2008). |
| "A systematic study
of nuclear photoexcitation with x-ray laser fields" |
| A. Pálffy, J. Mod. Opt. 55, 2603-2615 (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). |
| "Quantum
vacuum effects in strong laser beams" |
| A. Di Piazza, K. Z.
Hatsagortsyan, Plasma Phys. Control. Fusion 50, 124035 (2008). |
| "Nonlinear effects
in pulse propagation through Doppler-broadened closed-loop atomic media" |
| R. Fleischhaker, J. Evers, Phys.
Rev. A 77, 043805 (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. V. Popruzhenko, V. D. Mur, V.
S. Popov, D. Bauer, Phys. Rev. Lett. 101,
193003
(2008). |
| "Radiation
pressure acceleration by ultraintense laser pulses" |
| T. V. Liseykina, M. Borghesi, A.
Macchi, S.
Tuveri, Plasma Phys. Control. Fusion 50,
124033
(2008). |
| "Laser-driven relativistic recollisions" |
| K. Z. Hatsagortsyan, M. Klaiber, C. Müller, M. C. Kohler, C. H. Keitel, J. Opt. Soc. Am. B 25, B92-B103 (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
(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. Deneke, C. Müller, Phys.
Rev. A 78, 033431 (2008). |
| "Recollision-induced
plasmon
excitation
in
strong
laser
fields" |
| M. Ruggenthaler, S. V.
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). |
| "Strong field
approximation for systems with Coulomb interaction" |
| S. V. Popruzhenko, D. Bauer, J.
Mod. Opt. 55, 2573 (2008). |
| "Energy absorption and
emission of harmonics by clusters subject to intense short laser pulses" |
| S. V. Popruzhenko, D. F.
Zaretsky, D. Bauer, Las. Phys. Lett. 5,
631
(2008). |
| "Muon-pair creation by two x-ray laser photons in the field of an atomic nucleus" |
| C. Müller, C. Deneke, C. H. Keitel, Phys. Rev. Lett. 101, 060402 (2008). |
| "Plasma Jets Driven by Ultraintense-Laser Interaction with Thin Foils" |
| S. Kar, M. Borghesi, S. V.
Bulanov, M. H. Key, T. V. Liseykina, A. Macchi, A. J. Mackinnon, P. K.
Patel, L. Romagnani, A. Schiavi, and O. Willi, Phys. Rev. Lett. 100, 225004 (2008) |
| |
| "Laser-driven
collisions of electron bunches" |
| M. Verschl, C. Müller, Opt.
Commun. 281, 4352 (2008). |
| "Coulomb-corrected quantum trajectories in strong-field ionization" |
| S.V. Popruzhenko, G.G. Paulus, and D. Bauer, Phys. Rev. A 77, 053409 (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). |
| "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.innovations-report.de/ http://www.photonik.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). |
| "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). |
| "Laser-driven
recollisions
generalized
to
relativistic
energies" |
| M. Verschl, Las. Phys. 18, 5 (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). |
| (see also http://www.nist.gov/public_affairs/techbeat/tb2008_0429.htm#rydberg) |
| "Photoemission of a single-electron wave packet in a strong laser field" |
| J. Peatross, C. Müller, K. Z. Hatsagortsyan, C. H. Keitel, Phys. Rev. Lett. 100, 153601 (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). |
| "Harmonic emission
from cluster nanoplasmas subject to intense short laser pulses" |
| S. V. 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. V. Popruzhenko, W. Becker, Phys. Rev. A 77, 063405 (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). |
| "Nuclear-resonant
electron scattering" |
| A. Pálffy, Z. Harman,
Phys. Rev. A 77, 042704 (2008). |
| "Intrinsic channel
closing in
strong-field single ionization of H2" |
| S. Pieper, M. Lein, Phys. Rev. A
77, 041403 (2008). |
| "High-energy, nuclear and QED processes in strong laser fields" |
| C. Müller, A. Di Piazza, A. Shahbaz, T. J. Bürvenich, J. Evers, K.Z. Hatsagortsyan, C. H. Keitel, Las. Phys. 18, 3 (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" |
| U. D. Jentschura, J. Phys. A:
Math. Theor. 41, 155307 (2008). |
| (see also http://select.iop.org) |
| "Spatially entangled atomic deflections in twin-photon light beams" |
| G. Y. Kryuchkyan, M. Macovei, C. H. Keitel, Phys. Rev. A 77, 035603 (2008). |
| "Optimizing the ionization and energy absorption of laser-irradiated clusters" |
| M. Kundu, D. Bauer, Phys. Plasmas 15, 033303 (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). |
| "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). |
| "Exact solution of
the Landau-Lifshitz equation in a plane wave" |
| A. Di Piazza, Lett. Math. Phys. 83, 305 (2008). |
| "Structure,
time propagation and dissipative terms for resonances" |
| U. D. Jentschura, A. Surzhykov,
M. Lubasch, J. Zinn-Justin, J. Phys. A 41,
095301
(2008). |
| (see also http://select.iop.org) |
 "Resonant
interferometric
lithography
beyond
the
diffraction
limit" |
| M. Kiffner, J. Evers, M. S.
Zubairy, Phys. Rev. Lett. 100,
073602 (2008). |
| (see also Phys. Rev. Focus; Nature
451,
10032
(28
February
2008); Materials
Research
Society
Bulletin
(May
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). |
| "Isotope shift in the dielectronic recombination of three-electron ANd57+" |
| C. Brandau, C. Kozhuharov, Z. Harman, A. Müller, S. Schippers, Y. S. Kozhedub, D. Bernhardt, S. Böhm, J. Jacobi, E. W. Schmidt, P. H. Mokler, F. Bosch, H.-J. Kluge, Th. Stöhlker, K. Beckert, P. Beller, F. Nolden, M. Steck, A. Gumberidze, R. Reuschl, U. Spillmann, F. J. Currell, I. I. Tupitsyn, V. M. Shabaev, U. D. Jentschura, C. H. Keitel, A. Wolf, Z. Stachura, Phys. Rev. Lett. 100, 073201 (2008). |
| "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). |
| "Quasiclassical description of bremsstrahlung accompanying α decay including quadrupole radiation" |
| U. D. Jentschura, A. I.
Milstein, I. S. 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). |
| "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). |
| "Double-resonance
g-factor measurements by
quantum jump spectroscopy" |
| W. Quint, B. Nikoobakht, U. D.
Jentschura, Pis`ma v ZhETF 87,
36 (2008). |
| "Extensive
calculations of high-precision energy levels in hydrogen and deuterium
through a least-squares adjustment" |
| E.-O. Le Bigot, U. D.
Jentschura, S. Kotochigova, P. J. Mohr, B. N. Taylor, Adv. Quant. Chem.
53, 253 (2008). |
| "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 (2008). |
| "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 (2008). |
| "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
(2008). |
| "Nonperturbative
vacuum-polarization
effects
in
proton-laser
collisions" |
| A. Di Piazza, K. Z. Hatsagortsyan, C. H. Keitel, Phys. Rev. Lett. 100, 010403 (2008). |
| "Particle physics with a laser-driven positronium atom" |
| C. Müller, K. Z. Hatsagortsyan, C. H. Keitel, Phys. Lett. B 659, 209-213 (2008). |
|
|
| "Enhancement of entanglement for two-mode field generated from four-wave mixing with the help of the auxiliary atomic transition" |
| G.-X. Li, H. T. Tan, M. Macovei, Phys. Rev. A 76, 053827 (2007). |
| "Model
calculations of photoelectron emission from a surface-deposited
fullerene monolayer" |
| O. Kidun, D. Bauer, N. Fominykh,
J. Berakdar, J. Phys. B: At. Mol. Opt. Phys. 40, 4617 (2007). |
| "Interference effects in above-threshold ionization from diatomic molecules: Determining the internuclear separation" |
| H. Hetzheim, C. Figueira de Morisson Faria, W. Becker, Phys. Rev. A 76, 023418 (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). |
| "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. Tupitsyan, J. Ullrich, A. V. Volotka, Phys. Rev. A 76, 052501 (2007). |
| "Entangled light
via nonlinear vacuum-multiparticle interactions"; |
| M. Macovei, Gao-xiang Li, Phys.
Rev. A 76, 023818 (2007). |
| "Unified
description of deconfined QCD equation of state"; |
| A. Ipp, K. Kajantie, A. Rebhan,
A. Vuorinen, J. Phys. G 34,
631 (2007). |
| "Two-loop
effects
and
current
statuts
of
the
4He+ Lamb shift"; |
| U. D. Jentschura, M. Haas, Can.
J. Phys. 85, 531 (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
superconductors"; |
| I. Nandori, U. D. Jentschura, S.
Nagy, K. Sailer, K. Vad, S. Meszaros, J. Phys.: Condens. Matter 19, 236226 (2007). |
| "Production of
light particles by very strong and slowly varying magnetic fields"; |
| G. Calucci, A. Di Piazza,
Brazilian J. Phys. 37, 751
(2007). |
|
"Isomer
triggering
via nuclear excitation by electron capture"; |
| A. Pálffy, J. Evers, C. H. Keitel, Phys. Rev. Lett. 99, 172502 (2007). |
| "Photon splitting
in a laser field"; |
| A. Di Piazza, A. I. Milstein, C.
H. Keitel, Phys. Rev. A 76,
032103 (2007). |
| "Breakdown of the
few-level approximation in collective systems"; |
| M. Kiffner, J. Evers, C. H. Keitel, Phys. Rev. A 76, 013807 (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). |
| "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. V. Popruzhenko, D. Bauer, Phys. Rev. A 76, 033201 (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. Milstein, I. S. Terekhov, D.
Schwalm, Phys. Rev. Lett. 99,
022505 (2007). |
| "Electron
wave-packet
dynamics
in
a
relativistic
electromagnetic
field:
3-D
analytical
approximation"; |
| J. Peatross, C. Müller, C.
H. Keitel, Opt. Express 15,
6053 (2007). |
| "Superbunched
photons via a stongly pumped near-equispaced multiparticle system"; |
| M. Macovei, C. H. Keitel, Phys.
Rev. B 75, 245325 (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. 446, 1-96 (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, S. Fritzsche, M. Portillo, C. Scheidenberger, V. P. Shevelko,
A. Surzhykov, H. Weick, F. Becker, D. Boutin, B. Kindler, R. K.
Knöbel, J. Kurcewicz, W. Kurcewicz, Yu. A. Litvinov, B. Lommel, G.
Münzenberg, W. R. Plaß, N. Sakamoto, J. Stadlmann, H.
Tsuchida, M. Winkler, N. Yao, Phys. Rev. A 75, 020703 (R)(2007). |
| "Nuclear
signatures in high-order harmonic generation from laser-driven muonic
atoms"; |
| A. Shahbaz, C. Müller, A.
Staudt, T. J. Bürvenich, C. H. Keitel, Phys. Rev. Lett. 98, 263901 (2007). |
| "Enhancing superfluorescence via decay interference"; |
| M. A. Macovei, J. Phys. B: At. Mol. Opt. Phys. 40, 387 (2007) |
| "Quantum tunneling through potentials induced by vacuum-multiparticle interactions"; |
| M. A. Macovei, Phys. Rev. A 75, 043803 (2007). |
| "Lifetime determination of the Fe XIV 3s(2)3p P-2(3/2)o metastable level"; |
| G. Brenner, J. R. Crespo Lopez-Urrutia, Z. Harman, P. H. Mokler, J. Ullrich, Phys. Rev. A 75, 032504 (2007). |
| "Localization of
atomic ensembles via superfluorescence"; |
| M. Macovei, J. Evers, C. H. Keitel, M. S. Zubairy, Phys. Rev. A 75, 033801 (2007). |
| "Fully relativistic laser-induced ionization and recollision processes"; |
| M. Klaiber, K. Z. Hatsagortsyan, C. H. Keitel, Phys. Rev. A 75, 063413 (2007). |
| "On the inclusion
of the Coulomb interaction in the theory of multiphoton ionization"; |
| V. S. Popov, V. D. Mur, S. V.
Popruzhenko, JETP Lett. 85,
223-226 (2007). |
| "Reconstruction of an
arbitrarily polarized few-cycle laser pulse by two-dimensional
streaking"; |
| N. I. Shvetsov-Shilovski, S. P.
Goreslavski, S. V. Popruzhenko, W. Becker, G. G. Paulus, Las. Phys.
Lett. 4, 726-733 (2007). |
| "Nonlinear interaction of strong laser fields in a vacuum"; |
| A. Di Piazza, K. Z. Hatsagortsyan, C. H. Keitel, Laser Phys. 17, 345 (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 (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). |
| "Laser-assisted
bremsstrahlung for circular and linear polarization"; |
| S. Schnez, E. Lötstedt, U.
D. Jentschura, C. H. Keitel, Phys. Rev. A 75, 053412 (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). |
| "Non-uniform
convergence of two-photon decay rates for excited atomic states"; |
| U. D. Jentschura, J. Phys. A:
Math. Theor. 40, F223-F227
(2007). |
| "Vacuum
heating
versus
skin
layer
absorption
of
intense
femtosecond
laser
pulses"; |
| D. Bauer, P. Mulser, Phys.
Plasmas 14, 023301 (2007). |
| "Harmonium in
intense laser fields: excitation, absorption and transparency"; |
| O. Kidun, D. Bauer, J. Phys. B:
At. Mol. Opt. Phys. 40, 779
(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). |
| "Relativistic
recollisions with two consecutive laser pulses"; |
| M. Verschl, C. H. Keitel, J.
Phys. B 40, F69-F76 (2007). |
| "Refocussed
relativistic recollisions"; |
| M. Verschl, C. H. Keitel, Euro.
Phys. Lett. 77, 64004 (2007). |
| "Strongly
enhanced high-harmonic generation via antisymmetric ionic states"; |
| R. Fischer, M. Lein, C. H.
Keitel, J. Phys. B 40,
F113-F119 (2007). |
| "Enhancement of vacuum
polarization effects in a plasma"; |
| A. Di Piazza, K. Z.
Hatsagortsyan, C. H. Keitel, Phys. Plasmas 14, 032102 (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. Pàlffy, 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. Pàlffy, Z. Harman, W.
Scheid, Phys. Rev. A 75,
012709 (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(R) (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). |
| "Kα1 radiation from heavy, heliumlike ions produced in relativistic collisions"; |
| A. Surzyhkov, U. D. Jentschura,
T. Stöhlker, S. Fritzsche, Phys. Rev. A 74, 052710 (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, Th. Udem,
C. H. Keitel, T. W. Hänsch, Phys. Rev. A 74, 052504 (2006). |
| "High-order
above-threshold ionization in stretched molecules"; |
| C. C. Chirilă, M.
Lein, Phys.
Rev. A 74, 051401(R) (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). |
| "Effective action
and phase structure of multi-layer sine-Gordon type models"; |
| U. D. Jentschura, I.
Nándori, J. Zinn-Justin, Ann. of Phys. 321, 2647 (2006). |
| "Distilling
two-atom distance information from intensity-intensity correlation
functions"; |
| J.-T. 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. J. 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 Martínez, U. D. Jentschura, C. H. Keitel, A.
Lapierre, V. Mironov, V. M. Shabaev, H. Tawara, I. I. Tupitsyn, J.
Ullrich, A. V. Volotka, Phys. Rev. Lett. 97, 103002 (2006). |
| "Light Diffraction
by a Strong Standing Electromagnetic Wave"; |
| A. Di Piazza, K. Z.
Hatsagortsyan, C. H. Keitel, Phys. Rev. Lett. 97, 083603 (2006). |
| "Microscopic
laser-driven
high-energy
colliders"; |
| K. Z. Hatsagortsyan, C.
Müller, C. H. Keitel, Europhys. Lett. 76, 29 (2006). |
| "Influence
of nuclear vibration on harmonic generation in molecules"; |
| C. C. Chirilă, M.
Lein, J. Phys.
B 39, S437 (2006). |
| "Controlling
multiparticle
correlations
with
a
strong
laser
field"; |
| M. Dal Col, M. Macovei, C. H.
Keitel, Opt. Comm. 264, 407
(2006). |
| "Above-threshold
ionization
by
few-cycle
pulses"; |
| D. B. Milosevic, G. G. Paulus,
D. Bauer, W. Becker, J. Phys. B 39,
R203
(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 (2006). |
| "Collective
coherent population trapping in a thermal field"; |
| M. Macovei, Z. Ficek, C. H,
Keitel, Phys. Rev. A 73,
063821 (2006). |
| "Interference in
the resonance fluorescence of two incoherently coupled transitions"; |
| M. Kiffner, J. Evers, C. H.
Keitel, Phys. Rev. A 73,
063814 (2006). |
| "Quantum electrodynamic corrections to the hyperfine structure of excited S states"; |
| U. D. Jentschura, V. A.
Yerokhin, Phys. Rev. A 73,
062503 (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). |
| "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. 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, 052711 (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, 052710 (2006). |
| "Two-photon
excitation dynamics in bound two-body Coulomb systems including ac
Stark shift and ionization"; |
| M. Haas, U. D. Jentschura, C. H.
Keitel, N. Kolachevsky, M. Herrmann, P. Fendel, M. Fischer, Th. 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 (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. C. Chirilă, M. Lein, J. W.
G. Tisch,
J. P. Marangos, Science 312,
424 (2006). |
| "Two-electron
ionization and stabilization beyond the dipole approximation"; |
| A. Staudt, C. H. Keitel, Phys.
Rev. A 73, 043412 (2006). |
| "Relativistic
high-power laser-matter interactions"; |
| Y. I. Salamin, S. H. Hu, K. Z.
Hatsagortsyan, C. H. Keitel, Phys. Rep. 427, 41 (2006). |
| "Nuclear Quantum
Optics with X-Ray Laser Pulses"; |
| T. J. 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). |
| "Nonlinear
Resonance Absorption in the Laser-Cluster Interaction"; |
| M. Kundu, D. Bauer, Phys. Rev.
Lett. 96, 123401 (2006). |
| "QPROP: A Schrödinger-solver for
intense laser-atom interaction"; |
| D. Bauer, P. Koval, Comp. Phys.
Comm. 174, 396 (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.-T. Chang, J. Evers, M. O.
Scully, M. S. Zubairy, Phys. Rev. A 73,
031803
(2006). |
| "Strong-field
approximation for harmonic generation in diatomic molecules"; |
| C. C. Chirilă, M.
Lein, Phys.
Rev. A 73, 023410 (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). |
| "Ionization
suppression of excited atomic states beyond the stabilization regime"; |
| A. Staudt, C. H. Keitel, J. S.
Briggs, J. Phys. B 39, 633
(2006). |
| "On
the
validity
of
the
strong
field
approximation
and
simple
man's
theory"; |
| D. Bauer, D. B.
Milošević, W.
Becker, J. Mod. Opt. 53, 135
(2006). |
| "Quantum
orbit
theory
of
high-order
atomic
processes
in
intense
laser
fields"; |
| D. B. Milošević, D.
Bauer, W.
Becker, J. Mod. Opt. 53, 125
(2006). |
| "High-order
harmonic
generation
in
vibrating
molecules"; |
| C. C. Chirilă, M.
Lein, J. Mod.
Opt. 53, 113 (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
(2006). |
| "Quantum
correlations of an atomic ensemble via an incoherent bath"; |
| M. Macovei, J. Evers, C. H.
Keitel, Phys. Rev. A 72,
063809 (2005). |
| "Nonrelativistic
QED approach to the Lamb shift"; |
| U. D. Jentschura, A. Czarnecki,
K. Pachucki, Phys. Rev. A 72,
062102 (2005) |
| "Phase-dependent
interference
mechanisms
in
a
three-level
Λ
system
driven
by
a
quantized
laser
field"; |
| J. Evers, J. Mod. Opt. 52, 2699 (2005). |
| "Mechanisms of
ultrahigh-order harmonic generation"; |
| M. Lein, Phys. Rev. A 72, 053816 (2005). |
| "Free-electron quantum signatures in intense laser fields"; |
| M. Mahmoudi, Y. I. Salamin, C. H. Keitel, Phys. Rev. A 72, 033402 (2005). |
| "Harmonic generation from laser-driven vacuum"; |
| A. Di Piazza, K. Z. Hatsagortsyan, C. H. Keitel, Phys. Rev. D 72, 085005 (2005). |
| "Relativistic Electron Correlation, Quantum Electrodynamics, and the Lifetime of the 1s22s22p2Po3/2 Level in Boronlike Argon"; |
| 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, V. Shabaev, H. Tawara, I. I. Tupitsyn, J. Ullrich, A. Volotka, Phys. Rev. Lett. 95, 183001 (2005). |
| "Laser-dressed
vacuum
polarization in a Coulomb field"; |
| A. I. Milstein, I. S. Terekhov,
U. D. Jentschura, C. H. Keitel, Phys. Rev. A 72, 052104 (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. 95,
180404
(2005). |
| "Precise
Calculation of
Transition Frequencies of Hydrogen and Deuterium Based on a
Least-Squares Analysis"; |
| U. D. Jentschura, S.
Kotochigova, E.-O. Le Bigot, P. J. Mohr, B. N. Taylor,
Phys. Rev. Lett. 95, 163003
(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). |
| "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) . |
| "Classical
molecular-dynamics
simulations of laser-irradiated clusters: nonlinear electron dynamics
and resonance-enhanced low-order harmonic generation"; |
| S. V. Fomichev, D. F. Zaretsky,
D. Bauer, W. Becker, Phys. Rev. A 71,
013201
(2005). |
| "Rapid refractive index
enhancements via laser-mediated collectivity"; |
| M. Macovei, C. H. Keitel, J.
Phys. B: At. Mol. Opt. Phys. 38,
L315-L321
(2005). |
| "Techniques
in analytic lamb
shift calculations"; |
| U.D. Jentschura, Mod. Phys.
Lett. A 20, 2261 (2005). |
| "Renormalization-group
analysis
of
layered
sine-Gordon
type
models"; |
| I. Nándori, S. Nagy, K.
Sailer, U.D. Jentschura, Nucl. Phys. B 725,
467
(2005). |
| "Strong-field
approximation for intense-laser-atom processes: The choice of gauge"; |
| D. Bauer, D.B.
Miloševic, 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). |
| "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). |
| "Low-frequency-field induced spontaneous-emission interference in a two-level atom placed in an anisotropic photonic crystal"; |
| G.-X. Li, J. Evers and C. H. Keitel, J. Phys. B: At. Mol. Opt. Phys. 38, 1435 (2005). |
| "Isospin Dependence in the Odd-Even Staggering of Nuclear Binding Energies"; |
| Yu.A. Litvinov, T.J. Bürvenich, H. Geissel, Yu.N. Novikov, Z. Patyk, C. Scheidenberger, F. Attallah, G. Audi, K. Beckert, F. Bosch, M. Falch, B. Franzke, M. Hausmann, Th. Kerscher, O. Klepper, H.-J. 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 (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). |
| "Exact
Time-Dependent Exchange-Correlation Potentials for Strong-Field
Electron Dynamics"; |
| M. Lein, S. Kümmel, Phys. Rev. Lett. 94, 143003 (2005). |
| "Analysis of
recombination in high-order harmonic generation in molecules"; |
| B. Zimmermann, M. Lein, J.M. Rost, Phys. Rev. A 71, 033401 (2005). |
| "Multiphoton quantum
interference on a dipole-forbidden transition"; |
| U. Akram, J. Evers, C.H. Keitel, J. Phys. B 38, L69 (2005). |
| "Above-threshold
ionization beyond the dipole approximation"; |
| M. Klaiber, K. Z.
Hatsagortsyan, C.H.
Keitel, Phys. Rev. A 71,
033408 (2005). |
| "Radiation
spectra
of
laser-driven
quantum
relativistic
electrons"; |
| G.R. Mocken, C.H. Keitel, Comp.
Phys. Comm. 166, 171 (2005). |
| "Radiative Corrections
to Multi-Level Mollow-Type Spectra"; |
| U.D. Jentschura, J. Evers, C.H. Keitel, Las. Phys. 15, 37 (2005). |
| "Attosecond
Probing of Vibrational Dynamics with High-Harmonic Generation"; |
| M. Lein, Phys. Rev. Lett. 94, 053004 (2005). |
| |
| "Emergence of
Classical Orbits in Few-Cycle Above-Threshold Ionization of Atomic
Hydrogen"; |
| D. Bauer, Phys. Rev. Lett. 94, 113001 (2005). |
| "Coherent
manipulation of collective three-level systems"; |
| M. Macovei, J. Evers, C.H. Keitel, Phys. Rev. A 71, 033802 (2005). |
| "Relativistic and
radiative energy shifts for Rydberg states"; |
| U.D. Jentschura, E.-O. 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). |
| "Two-Loop Bethe
logarithms for higher excited S levels"; |
| U.D. Jentschura, Phys. Rev. A 70, 052108
(2004). |
| "Nonrelativistic
QED Approach to the Bound-Electron g Factor"; |
| K. Pachucki, U. D. Jentschura,
V. A.
Yerokhin, Phys. Rev. Lett. 93
(15), 150401 (2004). |
| "Magnetic
and
thermal
influences
on
collective
resonance
fluorescence"; |
| M. Macovei, J. Evers, C.H.
Keitel, Europhys.
Lett. 68, 391 (2004). |
| "Double-EIT
ground-state
laser
cooling
without
blue-sideband
heating"; |
| J. Evers, C.H. Keitel,
Europhys. Lett. 68,
370 (2004). |
| "Phase
dependence
of
collective
fluorescence
via
interferences
from
incoherent
pumping"; |
| M. Macovei, J. Evers, Opt.
Comm. 240,
379 (2004). |
|
G.R. Mocken, C.H. Keitel, J. of Comp. Phys. 199,
558
(2004).
|
|
B. Henrich, K. Z. Hatsagortsyan and C.H.
Keitel, Phys. Rev. Lett. 93, 013601 (2004).
|
|
J. Evers and C.H. Keitel, J. Phys. B 37,
2171
(2004).
|
|
G. Mocken and C.H. Keitel, J. Phys. B 37,
L275
(2004).
|
|
M. Fischer, N. Kolachevsky, M. Zimmermann,
R. Holzwarth, Th. Udem, T. W. Hänsch, M. Abgrall, J. Grünert,
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, and C.H. Keitel, Phys. Rev. Lett. 92, 230802
(2004).
|
|
U. D. Jentschura and C.H. Keitel, Annals of
Physics 310, 1 (2004).
|
|
R. Fischer, A. Staudt and C.H. Keitel, Comp.
Phys. Comm. 157, 139 (2004).
|
|
U. D. Jentschura, J. Evers, M. Haas and C.H.
Keitel, Phys. Rev. Lett. 91, 253601 (2003).
|
|
M. Macovei, J. Evers and C.H. Keitel, Phys.
Rev. Lett. 91, 233601 (2003).
|
|
G. Mocken and C.H. Keitel, Phys. Rev. Lett. 91,
173202
(2003).
|
|
M. Macovei and C.H. Keitel, Phys. Rev. Lett.
91, 123601 (2003).
|
|
A. Staudt and C.H. Keitel, J. Phys. B 36,
L203
(2003).
|
|
A. Staudt, J. Prager and C. H. Keitel,
Europhys Lett. 62, 691 (2003).
|
|
Yousef I. Salamin, Guido R. Mocken and
Christoph H. Keitel, Phys. Rev. E 67, 016501(2003).
|
|
M. Haas and C. H. Keitel, Opt. Comm. 216,
385(2003).
|
|
D. Bullock, J. Evers, C. H. Keitel, Phys.
Lett. A 307, 8(2003).
|
|
Yousef I. Salamin, Guido R. Mocken and
Christoph H. Keitel, Phys. Rev. ST Accel. Beams 5,
101301(2002).
|
|
J. Evers and C.H. Keitel, Phys. Rev. Lett. 89,
163601
(2002).
|
|
J. Evers, D. Bullock and C.H. Keitel, Opt.
Comm. 209, 173 (2002).
|
|
G. Zeng and C.H. Keitel, Phys. Rev. A 66,
022306
(2002).
|
|
Ulrich D Jentschura, Jörg Evers,
Christoph H Keitel and Krzysztof Pachucki, New J. Phys. 4 4, 49
(2002).
|
|
M. Casu and C. H. Keitel, Europhys Lett. 58,
496
(2002).
|
|
K. Z. Hatsagortsyan and C.H. Keitel, J.
Phys. B Lett. 35, L175 (2002).
|
|
J. Prager and C.H. Keitel, J. Phys. B 35,
L167
(2002).
|
|
M. W. Walser, D. J. Urbach, K. Z.
Hatsagortsyan, S. X. Hu and C.H. Keitel, Phys. Rev. A 65,
043410 (2002).
|
|
G. Zeng and C.H. Keitel, Phys. Rev. A 65,
042312
(2002).
|
|
Y. I. Salamin and C.H. Keitel, Phys. Rev.
Lett. 88, 095005 (2002).
|
|
J. Evers and C.H. Keitel, Phys. Rev. A 65,
033813
(2002).
|
|
C.H. Keitel and S. X. Hu, Apl. Phys. Lett. 80,
541
(2002).
|
|
L. N. Gaier and C. H. Keitel, Phys. Rev. A 65,
023406
(2002).
|
|
W. Qu, Z. Chen, Z. Xu and C. H. Keitel,
Phys. Rev. A65, 013402 (2002).
|
|
C.H. Keitel, Contemp. Phys. 42, 353
(2001).
|
|
M. W. Walser and C.H. Keitel, Opt. Comm. 199,
447
(2001).
|
|
J. Prager, S.X. Hu and C.H. Keitel, Phys.
Rev. A 64, 045402 (2001).
|
|
S.X. Hu and C.H. Keitel, Phys. Rev. A 63,
053402
(2001).
|
|
M. W. Walser and C.H. Keitel, Lett. Math.
Phys 55, 63 (2001).
|
|
Y.I. Salamin, C.H. Keitel and F.H.M. Faisal,
J. Phys. A 34, 2819 (2001).
|
|
K.Z. Hatsagortsyan and C.H. Keitel, Phys.
Rev. Lett. 86, 2277 (2001).
|
|
Giovanna Morigi, Jürgen Eschner,
Christoph H. Keitel, Phys. Rev. Lett. 85, 4458 (2000).
|
|
M. W. Walser, C. H. Keitel, A. Scrinzi, T.
Brabec, Phys. Rev. Lett. 85, 5082 (2000).
|
|
Y. I. Salamin and C. H. Keitel, J Phys. B 33,
5057
(2000).
|
|
Y.I. Salamin, F.H.M. Faisal and C. H.
Keitel, Phys. Rev. A 62, 53809 (2000).
|
|
Y. I. Salamin and C. H. Keitel, Appl. Phys.
Lett. 77, 1082 (2000).
|
|
D. E. Browne and C. H. Keitel, J. Mod. Opt.
47, 1307 (2000).
|
|
M. Erhard and C. H. Keitel, Opt. Comm.
179, 517 (2000).
|
|
M. Casu, C. Szymanowski, S. X. Hu and C. H.
Keitel, J. Phys. B Lett. 33, L411 (2000).
|
|
D. J. Urbach C. H. Keitel, Phys. Rev. A
61, 043409 (2000).
|
|
M. W. Walser and C. H. Keitel, J. Phys. B
Lett. 33, L221 (2000).
|
|
S. X. Hu and C. H. Keitel, Phys. Rev. Lett. 83,
4709
(1999).
|
|
M. W. Walser, C. Szymanowski and C. H.
Keitel, Europhys Lett. 48, 533 (1999).
|
|
S. X. Hu and C. H. Keitel, Europhys. Lett. 47,
318
(1999).
|
|
C. H. Keitel, Phys. Rev. Lett. 83,
1307 (1999).
|
|
C. H. Keitel, C. Szymanowski, P. L. Knight,
A. Maquet, J. Phys. B Lett. 31, 75 (1998).
|
|
C. H. Keitel, Phys. Rev. A 57, 1412
(1998).
|
|
M. Protopapas, C. H. Keitel and P. L.
Knight, Reports on Progress in Physics 60, 389-486 (1997).
|
|
C. Szymanowski, V. Veniard, R. Taieb, A.
Maquet and C. H. Keitel, Phys. Rev. A 56, 3846 (1997).
|
|
M. A. Martinez, P. R. Herezfeld, C. Samuels,
L. M. Narducci and C. H. Keitel, Phys. Rev. A 55, 4483 (1997).
|
|
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