Two-loop self-energy contribution to the Lamb shift in H-like ions

被引：54

作者：

Yerokhin, VA

Indelicato, P

Shabaev, VM

机构：

[1] St Petersburg State Univ, Dept Phys, St Petersburg 198504, Russia

[2] St Petersburg State Polytech Univ, Ctr Adv Studies, St Petersburg 195251, Russia

[3] Ecole Normale Super, Lab Kastler Brossel, F-75252 Paris, France

[4] Univ Paris 06, F-75252 Paris, France

来源：

PHYSICAL REVIEW A | 2005年 / 71卷 / 04期

关键词：

D O I：

10.1103/PhysRevA.71.040101

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

The two-loop self-energy correction is evaluated to all orders in Z alpha for the ground-state Lamb shift of H-like ions with Z >= 10, where Z is the nuclear charge number and alpha is the fine-structure constant. The results obtained are compared with the analytical values for the Z alpha-expansion coefficients. An extrapolation of the all-order numerical results to Z=1 is presented and implications of our calculation for the hydrogen Lamb shift are discussed.

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