Retardation long-range potentials between two helium atoms

被引:35
作者
Chen, MK [1 ]
Chung, KT [1 ]
机构
[1] N CAROLINA STATE UNIV, DEPT PHYS, RALEIGH, NC 27695 USA
来源
PHYSICAL REVIEW A | 1996年 / 53卷 / 03期
关键词
D O I
10.1103/PhysRevA.53.1439
中图分类号
O43 [光学];
学科分类号
070207 ; 0803 ;
摘要
The retardation long-range potentials between two 1 S-1 (or 2 S-3) helium atoms are calculated. The complex dynamic multipole polarizabilities of 1 S-1 and 2 S-3 states of helium are obtained through a variation-perturbation approach with B-spline and Slater-type basis functions in a configuration-interaction scheme. They are used to calculate the retardation long-range potentials. The retardation coefficients are examined. Their relative magnitudes are different for different systems. The possibility of an excited state of helium dimer from the 1 S-1-2 S-3 He-2 state is estimated.
引用
收藏
页码:1439 / 1446
页数:8
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