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arXiv · 1001.0406

Theoretical energies of low-lying states of light helium-like ions

Vladimir A. Yerokhin·Krzysztof Pachucki
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Abstract

Rigorous quantum electrodynamical calculation is presented for energy levels of the 1^1S, 2^1S, 2^3S, 2^1P_1, and 2^3P_{0,1,2} states of helium-like ions with the nuclear charge Z=3...12. The calculational approach accounts for all relativistic, quantum electrodynamical, and recoil effects up to orders m\alpha^6 and m^2/M\alpha^5, thus advancing the previously reported theory of light helium-like ions by one order in \alpha.

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Vladimir A. Yerokhin, Krzysztof Pachucki. 2010-01-03. Theoretical energies of low-lying states of light helium-like ions. https://doi.org/10.1103/physreva.81.022507

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