Bethe logarithm for the 1 1S and 2 1S states of helium

被引：56

作者：

Korobov, VI ^{[1
]}

Korobov, SV

机构：

[1] Joint Inst Nucl Res, Dubna 141980, Russia

[2] Univ Dubna, Dubna 141980, Russia

来源：

PHYSICAL REVIEW A | 1999年 / 59卷 / 05期

关键词：

D O I：

10.1103/PhysRevA.59.3394

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

We present variational calculations of the Bethe logarithm for the 1 S-1 and 2 S-1 states of helium. The approach is based on the explicit second-order perturbation formula and closely follows the method of Schwartz. The final values are In[K-0(1 S-1)/(1 Ry)] = 4.370 157 9(5) and ln[k(0)(2 S-1)/(1 Ry)] = 4.366 409 1 (7). The latter result reduces the difference between theoretical and experimental values for the ionization potential of the 2, S-1 State to 0.15 MHz. [S1050-2947(99)03305-3].

引用

页码：3394 / 3396

页数：3

共 16 条

[1]

Baker J. L., UNPUB

[2]

Bethe H A., 1977, Quantum Mechanics of One- and Two-Electron Atoms

[3] Another way to calculate the Lamb shift in two-electron systems [J].