Large contributions of negative-energy states to forbidden magnetic-dipole transition amplitudes in alkali-metal atoms

被引:26
|
作者
Savukov, IM [1 ]
Derevianko, A [1 ]
Berry, HG [1 ]
Johnson, WR [1 ]
机构
[1] Univ Notre Dame, Dept Phys, Notre Dame, IN 46556 USA
关键词
D O I
10.1103/PhysRevLett.83.2914
中图分类号
O4 [物理学];
学科分类号
0702 ;
摘要
The influence of negative-energy states (NES) on forbidden magnetic-dipole ns(1/2) - (n + 1)s(1/2) transitions in alkali-metal atoms is investigated. We find that the NES contributions are significant in almost all cases and, for rubidium. reduce the transition rate by a factor of 8. We tabulate magnetic-dipole (M-1) transition amplitudes for the alkalis. Our M-1 value for cesium, where accurate measurements are available, differs from experiment by 16%. We briefly discuss the feasibility of an experimental test of NES effects.
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页码:2914 / 2917
页数:4
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