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arXiv · 1903.09733

QED theory of the specific mass shift in atoms

A. V. Malyshev·I. S. Anisimova·D. V. Mironova·V. M. Shabaev·G. Plunien
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Abstract

The quantum electrodynamics formalism to treat the interelectronic-interaction correction of first order in $1/Z$ to the two-electron part of the nuclear recoil effect on binding energies in atoms and ions is developed. The nonperturbative in $αZ$ calculations of the corresponding contribution to the energies of the $1s^2$ state in He-like and the $1s^2 2s$ and $1s^2 2p_{1/2}$ states in Li-like ions are performed in the range $Z=5-100$. The behavior of the two-electron part of the nuclear recoil effect beyond the lowest-order relativistic approximation as $Z$ grows is studied.

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A. V. Malyshev, I. S. Anisimova, D. V. Mironova, V. M. Shabaev, G. Plunien. 2019-06-10. QED theory of the specific mass shift in atoms. https://doi.org/10.1103/physreva.100.012510

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