59 citations · 229 across the 12 of their papers we have counts for
12 papers
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…
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…
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…
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…
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…
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…
QED calculations of energy levels of helium-like ions with
Vladimir A. Yerokhin, Vojtěch Patkóš, Krzysztof Pachucki
A calculation of two-electron QED effects to all orders in the nuclear binding strength parameter is presented for the ground and excited states of helium-like ions. A…
Complete Lamb shift of helium triplet states
Vojtěch Patkóš, Vladimir A. Yerokhin, Krzysztof Pachucki
We have derived the complete formula for the contribution to energy levels of an arbitrary triplet state of the helium atom, performed numerical calculations for the $2^3S…
Nonradiative QED effects in Lamb shift of helium triplet states
Vojtěch Patkóš, Vladimir A. Yerokhin, Krzysztof Pachucki
Theoretical predictions for the Lamb shift in helium are limited by unknown quantum electrodynamic effects of the order , where is the fine-structure constant and is…
Quantum electrodynamic corrections to the states of the helium atom
Albert Wienczek, Krzysztof Pachucki, Mariusz Puchalski +2
We perform quantum electrodynamic calculations of the ionization energy of the states of the He atom, including a complete evaluation of the correction. We find a…
Relativistic corrections to the Bethe logarithm for the and states of He
Vladimir A. Yerokhin, Vojtěch Patkóš, Krzysztof Pachucki
With this work we start a project of calculating the QED contribution of order to the - transition energy in helium, aiming for an accurate determination of the…
Three-photon exchange nuclear structure correction in hydrogenic systems
Krzysztof Pachucki, Vojtěch Patkóš, Vladimir A. Yerokhin
The complete relativistic nuclear structure correction to the energy levels of ordinary (electronic) and muonic hydrogen-like atoms is investigated. The elastic part of th…