HYDROGENIC-FUNCTION AND STURMIAN-FUNCTION EXPASIONS IN 3-BODY ATOMIC PROBLEMS

被引:14
作者
CHEN, JCY
ISHIHARA, T
机构
[1] Department of Physics, Institute for Pure and Applied Physical Sciences, University of California, San Diego
[2] Department of Physics, University of California, Riverside, CA
来源
PHYSICAL REVIEW | 1969年 / 186卷 / 01期
关键词
D O I
10.1103/PhysRev.186.25
中图分类号
O4 [物理学];
学科分类号
0702 ;
摘要
Hydrogenic-function and Sturmian-function expansions are examined in both the Schrödinger and Faddeev formulations for three-body atomic problems. A detailed comparison of their convergence behavior is made. The difficulty of Sturmian-function expansion in accounting for the strong coupling between degenerate target states at excitation thresholds does not arise in the Faddeev formulation. The difficulty with the uncontrolled continuum contribution in the hydrogenic-function expansion, however, persists in both formulations. An estimation of the continuum contribution in the hydrogenic-function expansion is made for off-shell amplitudes which appear in the Faddeev formulation. © 1969 The American Physical Society.
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页码:25 / &
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