Prof. V. Yerokhin | Electron self-energy without expansion in binding field and Rydberg constant
Автор: Faculty of Physics
Загружено: 2025-02-04
Просмотров: 165
17 декабря 2024
Abstract
The electron self-energy is one of the most problematic effects in the hydrogen Lamb shift, whose theory is the cornerstone in the determination of the Rydberg constant. Recently, we were able to achieve a breakthrough in calculations of the electron self-energy without any expansion in the nuclear binding strength parameter, basing on the method for improving the convergence of the partial-wave expansion suggested by Sapirstein and Cheng. I will discuss the recent progress in one- and two-loop self-energy calculations and the consequences for the improved determination of the Rydberg constant.
References:
V. A. Yerokhin, Z. Harman, Ch. Keitel, Phys. Rev. Lett., in press.
V. A. Yerokhin, Z. Harman, Ch. Keitel, arXiv:2411.19135v1.
J. Sapirstein, K. T. Cheng, Phys. Rev. A 108, 042804 (2023).
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