432 citations · 5.7k across the 212 of their papers we have counts for
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Nonrelativistic QED approach to the bound-electron g factor
K. Pachucki, U. D. Jentschura, V. A. Yerokhin
Within a systematic approach based on nonrelativistic quantum electrodynamics (NRQED), we derive the one-loop self-energy correction of order alpha (Zalpha)^4 to the bound-electron…
Toward high-precision values of the self energy of non-S states in hydrogen and hydrogen-like ions
Eric-Olivier Le Bigot, Ulrich D. Jentschura, Paul Indelicato +1
The method and status of a study to provide numerical, high-precision values of the self-energy level shift in hydrogen and hydrogen-like ions is described. Graphs of the self ener…
Self-Energy Correction to the Two-Photon Decay Width in Hydrogenlike Atoms
U. D. Jentschura
We investigate the gauge invariance of the leading logarithmic radiative correction to the two-photon decay width in hydrogenlike atoms. It is shown that an effective treatment of…
Two-Loop Bethe Logarithms for Higher Excited S Levels
Ulrich D. Jentschura
Processes mediated by two virtual low-energy photons contribute quite significantly to the energy of hydrogenic S states. The corresponding level shift is of the order of (alpha/pi…
Instantons in Quantum Mechanics and Resurgent Expansions
Ulrich D. Jentschura, Jean Zinn-Justin
Certain quantum mechanical potentials give rise to a vanishing perturbation series for at least one energy level (which as we here assume is the ground state), but the true ground-…
Relativistic and Radiative Energy Shifts for Rydberg States
U. D. Jentschura, E. -O. Le Bigot, J. Evers +2
We investigate relativistic and quantum electrodynamic effects for highly-excited bound states in hydrogenlike systems (Rydberg states). In particular, hydrogenic one-loop Bethe lo…
Electron Self Energy for Higher Excited S Levels
Ulrich D. Jentschura, Peter J. Mohr
A nonperturbative numerical evaluation of the one-photon electron self energy for the 3S and 4S states with charge numbers Z=1 to 5 is described. The numerical results are in agree…
Relativistic and Radiative Corrections to the Mollow Spectrum
Joerg Evers, Ulrich D. Jentschura, Christoph H. Keitel
The incoherent, inelastic part of the resonance fluorescence spectrum of a laser-driven atom is known as the Mollow spectrum [B. R. Mollow, Phys. Rev. 188, 1969 (1969)]. Starting f…