activity
20182026
most citedComplete Lamb shift of helium triplet states

57 citations · 122 across the 9 of their papers we have counts for

collaborators

12 papers

physics.atom-ph2026

Hydrogenic rotational levels with spin-0 or spin-1/2 constituent particles

Vojtěch Patkóš, Mateusz Pańtak, Krzysztof Pachucki

We employ nonrelativistic quantum electrodynamics with a unified description of two-body systems with spin-0 or spin-1/2 constituents, arbitrary masses, and arbitrary magnetic mome…

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-ph2024★ 1 cited

Second-order hyperfine correction to H, D, and He energy levels

Krzysztof Pachucki, Vojtěch Patkóš, Vladimir A. Yerokhin

The complete second-order hyperfine-interaction correction is calculated for centroid energy levels of H, D, and He atoms. For He, the corrections of ~kHz and $-0.3…

physics.atom-ph2024

Radiative corrections of the order for rotational states of two-body systems

Vojtěch Patkóš, Krzysztof Pachucki

The analytical calculation of the complete one-loop radiative correction to energies of two-body systems with the angular momenta , consisting of a pointlike par…

physics.atom-ph2023★ 2 cited

Hyperfine splitting in Li

Krzysztof Pachucki, Vojtěch Patkóš, Vladimir A. Yerokhin

We present a detailed derivation of the QED effects of order to the hyperfine structure (hfs) of the states of helium-like ions and perform numerical calculations fo…

physics.atom-ph2022★ 12 cited

QED effects for triplet states of helium-like ions

Vladimir A. Yerokhin, Vojtěch Patkóš, Krzysztof Pachucki

We perform ab initio calculations of the QED effects of order for the and states of He-like ions. The computed effects are combined with previously calculated…