14.6k citations
Counting papers with at most 25 authors, so collaboration author lists do not stand in for the people here.
- Centre National de la Recherche ScientifiqueFR1.6k papers
- Institut National de Physique Nucléaire et de Physique des ParticulesFR1.4k papers
- Heidelberg UniversityDE1.3k papers
- Max Planck SocietyDE1.1k papers
- University of ZurichCH1.1k papers
- European Organization for Nuclear ResearchCH1k papers
- Laboratoire de Physique Nucléaire et de Hautes ÉnergiesFR990 papers
- Institute of Nuclear Physics, Polish Academy of SciencesPL973 papers
- University of Maryland, College ParkUS940 papers
- Rutherford Appleton LaboratoryGB939 papers
- Institute for Nuclear ResearchRU922 papers
- Istituto Nazionale di Fisica Nucleare, Sezione di BolognaIT912 papers
12 papers · 2 filters
The propagator of a relativistic particle via the path-dependent vector potential
Enderalp Yakaboylu, Karen Z. Hatsagortsyan, Christoph H. Keitel
The proper time formalism for a particle propagator in an external electromagnetic field is combined with the path-dependent formulation of the gauge theory to simplify the quasicl…
Diffractionless image propagation and frequency conversion via four-wave mixing exploiting the thermal motion of atoms
L. Zhang, J. Evers
A setup to frequency-convert an arbitrary image encoded in the spatial profile of a probe field onto a signal field using four-wave mixing in a thermal atom vapor is proposed. The…
Relativistic features and time delay of laser-induced tunnel-ionization
Enderalp Yakaboylu, Michael Klaiber, Heiko Bauke +2
The electron dynamics in the classically forbidden region during relativistic tunnel-ionization is investigated. The classical forbidden region in the relativistic regime is identi…
Proposed Entanglement of X-ray Nuclear Polaritons as a Potential Method for Probing Matter at the Subatomic Scale
Wen-Te Liao, Adriana Pálffy
A setup for generating the special superposition of a simultaneously forward- and backward-propagating collective excitation in a nuclear sample is studied. We show that by activel…
Computational relativistic quantum dynamics and its application to relativistic tunneling and Kapitza-Dirac scattering
Heiko Bauke, Michael Klaiber, Enderalp Yakaboylu +4
Computational methods are indispensable to study the quantum dynamics of relativistic light-matter interactions in parameter regimes where analytical methods become inapplicable. W…
X-ray quantum optics with Mössbauer nuclei embedded in thin film cavities
K. P. Heeg, J. Evers
A promising platform for the emerging field of x-ray quantum optics are Mössbauer nuclei embedded in thin film cavities probed by near-resonant x-ray light, as used in a number of…
Vacuum-assisted generation and control of atomic coherences at x-ray energies
Kilian P. Heeg, Hans-Christian Wille, Kai Schlage +9
The control of light-matter interaction at the quantum level usually requires coherent laser fields. But already an exchange of virtual photons with the electromagnetic vacuum fiel…
Bessel beams of two-level atoms driven by a linearly polarized laser field
Armen G. Hayrapetyan, Oliver Matula, Andrey Surzhykov +1
We study Bessel beams of two-level atoms that are driven by a linearly polarized laser field. Starting from the Schroedinger equation, we determine the states of two-level atoms in…
Optical cloning of arbitrary images beyond the diffraction limits
O. N. Verma, L. Zhang, J. Evers +1
Cloning of arbitrary images encoded onto the spatial profile of a laser beam onto that of a second beam is theoretically investigated. The two fields couple to an atomic lambda sys…
A study of local and non-local spatial densities in quantum field theory
R. E. Wagner, M. R. Ware, E. V. Stefanovich +2
We use a one-dimensional model system to compare the predictions of two different 'yardsticks' to compute the position of a particle from its quantum field theoretical state. Based…
What is the relativistic spin operator?
Heiko Bauke, Sven Ahrens, Christoph H. Keitel +1
Although the spin is regarded as a fundamental property of the electron, there is no universally accepted spin operator within the framework of relativistic quantum mechanics. We i…
Numerical Optical Centroid Measurements
Qurrat-ul-Ain Gulfam, Jörg Evers
Optical imaging methods are typically restricted to a resolution of order of the probing light wavelength by the Rayleigh diffraction limit. This limit can be circumvented by…