ACCURATE SCREENED QED CALCULATIONS IN HIGH-Z MANY-ELECTRON IONS

被引:124
作者
BLUNDELL, SA
机构
[1] University of California, Lawrence Livermore National Laboratory, Livermore, CA 94550
来源
PHYSICAL REVIEW A | 1992年 / 46卷 / 07期
关键词
D O I
10.1103/PhysRevA.46.3762
中图分类号
O43 [光学];
学科分类号
070207 ; 0803 ;
摘要
We describe a practical, rigorous, QED procedure for performing accurate calculations of the screened self-energy for high-Z ions based on a realistic local atomic potential. Using a basis-set algorithm, we show that the procedure involves a rapidly convergent partial-wave expansion that, in contrast to previous methods, requires explicit computation of only the first few partial waves. We apply the method to the 2s-2p1/2 transition of Li-like U, the 3s-3P3/2 transition of Na-like Pt, and the 4s-4p1/2 transition in Cu-like Bi. When combined with calculations of the screened Uehling vacuum-polarization term and earlier correlation calculations, the results agree with experiment to within several tenths of an eV.
引用
收藏
页码:3762 / 3775
页数:14
相关论文
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