activity
19952026
most citedDual kinetic balance approach to basis set expansions for the Dirac equation

321 citations · 6.8k across the 166 of their papers we have counts for

collaborators

162 papers

physics.atom-ph2026

Higher-order corrections to the field shift in atomic systems

V. A. Yerokhin, Z. Harman, C. H. Keitel

Differences in nuclear charge distributions between isotopes lead to small changes in atomic spectra known as the field shift. While largely proportional to the change in the mean-…

physics.atom-ph2026

Wichmann-Kroll Correction to the Interelectronic Interaction in He- and Li-Like Ions

J. Sommerfeldt, V. A. Yerokhin, Z. Harman +1

We present a theoretical study of the higher-order QED contribution to the interelectronic interaction in He- and Li-like ions, where a virtual electron-positron loop is inserted i…

physics.atom-ph2026★ 1 cited

Atomic parity violation in highly charged Ca and Pb ions

A. V. Viatkina, Ch. G. Mertens, B. Ohayon +2

We calculate parity-violation-induced E1 amplitudes for the and transitions in H- and Li-like ions of Ca, Ca, and $^{2…

hep-ph2026

Energy levels of multiscale bound states from QED energy-momentum trace

Michael I. Eides, Vladimir A. Yerokhin

Energy levels of QED bound states, which depend on a number of independent mass parameters, can be calculated as matrix elements of the QED energy-momentum tensor trace. As an exam…

physics.atom-ph2025★ 1 cited

QED nuclear recoil effect in helium isotope shift

Krzysztof Pachucki, Vojtěch Patkóš, Vladimir A. Yerokhin

We present a detailed investigation of the leading-order QED correction with inclusion of the finite-nuclear-mass effects. Previously, this correction had been calculated wi…

physics.atom-ph2025

Two-loop electron self-energy in bound-electron factor: diagrams in momentum-coordinate representation

V. A. Yerokhin, B. Sikora, Z. Harman +1

The two-loop electron self-energy correction is one of the most problematic QED effects and, for a long time, was the dominant source of uncertainty in the theoretical prediction o…