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
11 papers · 2 filters
QED corrections of order alpha (Zalpha)^2 E_F to the hyperfine splitting of P_1/2 and P_3/2 states in hydrogenlike ions
U. D. Jentschura, V. A. Yerokhin
The hyperfine structure (HFS) of a bound electron is modified by the self-interaction of the electron with its own radiation field. This effect is known as the self-energy correcti…
Self-energy correction to the hyperfine splitting and the electron g factor in hydrogen-like ions
Vladimir A. Yerokhin, Ulrich D. Jentschura
The hyperfine structure (hfs) and the g factor of a bound electron are caused by external magnetic fields. For the hfs, the magnetic field is due to the nuclear spin. A uniform-in-…
Loading atom lasers by collectivity-enhanced optical pumping
M. A. Macovei, J. Evers
The effect of collectivity on the loading of an atom laser via optical pumping is discussed. In our model, atoms in a beam are laser-excited and subsequently spontaneously decay in…
Imaging Molecules from Within: Ultra-fast, Ångström Scale Structure Determination of Molecules via Photoelectron Holography using Free Electron Lasers
F. Krasniqi, B. Najjari, L. Strüder +3
A new scheme based on (i) upcoming brilliant X-ray Free Electron Laser (FEL) sources, (ii) novel energy and angular dispersive, large-area electron imagers and (iii) the well-known…
Relativistic (Z alpha)^2-Corrections and Leading Quantum Electrodynamic Corrections to the Two-Photon Decay Rate of Ionic States
B. J. Wundt, U. D. Jentschura
We calculate the relativistic corrections of relative order (Z alpha)^2$ to the two-photon decay rate of higher excited S and D states in ionic atomic systems, and we also evaluate…
Penning traps as a versatile tool for precise experiments in fundamental physics
K. Blaum, Yu. N. Novikov, G. Werth
This review article describes the trapping of charged particles. The main principles of electromagnetic confinement of various species from elementary particles to heavy atoms are…
Inelastic collisions of relativistic electrons with atomic targets assisted by a laser field
A. B. Voitkiv, B. Najjari, J. Ullrich
We consider inelastic collisions between relativistic electrons and atomic targets assisted by a low-frequency laser field in the case when this field is still much weaker than the…
Relativistic electron-ion recombination in the presence of an intense laser field
C. Müller, A. B. Voitkiv, B. Najjari
Radiative recombination of a relativistic electron with a highly charged ion in the presence of an intense laser field is considered. Various relativistic effects, caused by the hi…
Rabi Oscillations and Few-Level Approximations in Time-Dependent Density Functional Theory
M. Ruggenthaler, D. Bauer
The resonant interaction of laser light with atoms is analyzed from the time-dependent density functional theory perspective using a model Helium atom which can be solved exactly.…
Bound-bound pair production in relativistic collisions
A. B. Voitkiv, B. Najjari, A. Di Piazza
Electron-positron pair production is considered in the relativistic collision of a nucleus and an anti-nucleus, in which both leptons are created in bound states of the correspondi…
Fundamental constants and tests of theory in Rydberg states of hydrogen-like ions
U. D. Jentschura, P. J. Mohr, J. N. Tan +1
Comparison of precision frequency measurements to quantum electrodynamics (QED) predictions for Rydberg states of hydrogen-like ions can yield information on values of fundamental…