Combined configuration-interaction and many-body-perturbation-theory calculations of energy levels and transition amplitudes in Be, Mg, Ca, and Sr

被引:59
作者
Savukov, IM [1 ]
Johnson, WR [1 ]
机构
[1] Univ Notre Dame, Dept Phys, Notre Dame, IN 46566 USA
来源
PHYSICAL REVIEW A | 2002年 / 65卷 / 04期
关键词
D O I
10.1103/PhysRevA.65.042503
中图分类号
O43 [光学];
学科分类号
070207 ; 0803 ;
摘要
Configuration interaction (CI) calculations in atoms with two-valence electrons, carried out in the V(N-2) Hartree-Fock potential of the core, are corrected for core-valence interactions using many-body perturbation theory (MBPT). Two variants of the mixed CI+MBPT theory are described and applied to obtain energy levels and transition amplitudes for Be, Mg, Ca, and Sr.
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页数:8
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