Ground-state energies for helium, H-, and Ps- -: art. no. 054501

被引：166

作者：

Drake, GWF ^{[1
]}

Cassar, MM ^{[1
]}

Nistor, RA ^{[1
]}

机构：

[1] Univ Windsor, Dept Phys, Windsor, ON N9B 3P4, Canada

来源：

PHYSICAL REVIEW A | 2002年 / 65卷 / 05期

关键词：

D O I：

10.1103/PhysRevA.65.054501

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

A triple basis set in Hylleraas coordinates is used to obtain improved variational bounds for the nonrelativistic energy and other properties of He, H-, and Ps(-). The accuracy, numerical stability, and computational efficiency are compared with recent work based on quasirandom basis sets. The Kato cusp conditions are used to assess the accuracy of the wave functions at short distances.

引用

页码：545011 / 545014

页数：4

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