Combination of the many-body perturbation theory with the configuration-interaction method

被引：304

作者：

Dzuba, VA

Flambaum, VV

Kozlov, MG

机构：

[1] HARVARD SMITHSONIAN CTR ASTROPHYS, INST THEORET ATOM & MOL PHYS, CAMBRIDGE, MA 02138 USA

[2] HARVARD UNIV, CAMBRIDGE, MA 02138 USA

[3] PETERSBURG NUCL PHYS INST, GATCHINA 188350, RUSSIA

来源：

PHYSICAL REVIEW A | 1996年 / 54卷 / 05期

关键词：

D O I：

10.1103/PhysRevA.54.3948

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

An ab initio method for high accuracy calculations for atoms with more than one valence electron is described. The effective Hamiltonian for the valence electrons is formed using many-body perturbation theory for the interaction of the valence electrons with the core. The configuration-interaction method is then used to find the energy levels of the atom. An application of this to thallium shows that the method gives an accuracy of about 0.5% for the ionization potential and a few tenths of a percent for the first few energy intervals.

引用

页码：3948 / 3959

页数：12

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