α4R corrections to singlet states of helium

被引：106
作者：
Pachucki, Krzysztof [1 ]
机构：
[1] Univ Warsaw, Inst Theoret Phys, PL-00681 Warsaw, Poland
来源：
PHYSICAL REVIEW A | 2006年 / 74卷 / 02期
关键词：
D O I：
10.1103/PhysRevA.74.022512
中图分类号：
O43 [光学];
学科分类号：
070207 ; 0803 ;
摘要：
Corrections of order alpha R-4 are calculated for the singlet states 1 S-1(0) and 2 S-1(0) of the helium atom. The result for the 1 S-1(0) state is in slight disagreement with that of Korobov and Yelkhovsky [Phys. Rev. Lett. 87, 193003 (2001)]. The results obtained lead to a significant improvement of the transition frequencies between low-lying levels of the helium atom. In particular theoretical predictions for the 2 S-1(0)-1 S-1(0) transition are found to be in disagreement with experimental values.
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页数：17
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