Third-order perturbation theory for van der Waals interaction coefficients

被引：6

作者：

Tang, Li-Yan ^{[1
]}

Yan, Zong-Chao ^{[2
,3
,4
]}

Shi, Ting-Yun ^{[1
]}

Mitroy, J. ^{[5
]}

机构：

[1] Chinese Acad Sci, State Key Lab Magnet Resonance & Atom & Mol Phys, Wuhan Inst Phys & Math, Wuhan 430071, Peoples R China

[2] Chinese Acad Sci, Ctr Cold Atom Phys, Wuhan 430071, Peoples R China

[3] Wuhan Univ, Dept Phys, Wuhan 430072, Peoples R China

[4] Univ New Brunswick, Dept Phys, Fredericton, NB E3B 5A3, Canada

[5] Charles Darwin Univ, Sch Engn, Darwin, NT 0909, Australia

来源：

PHYSICAL REVIEW A | 2011年 / 84卷 / 05期

基金：

加拿大自然科学与工程研究理事会; 澳大利亚研究理事会;

关键词：

CORE POLARIZATION CORRECTIONS; DISPERSION COEFFICIENTS; PHOTOASSOCIATION SPECTROSCOPY; OSCILLATOR-STRENGTHS; HIGH-PRECISION; RANGE; STATE; POTENTIALS; MOLECULES; ENERGIES;

D O I：

10.1103/PhysRevA.84.052502

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

The third-order expression for the dispersion interaction between two atoms is written as a sum over lists of transition matrix elements. Particular attention is given to the C-9/R-9 interaction which occurs in the homonuclear case when one atom is in an S state and the other is in a P state. Numerical values of the C-9 coefficient are given for the homonuclear alkali-metal dimers. The size of the C-9:C-3 dispersion coefficient ratio increases for the heavier alkali-metal atoms. The C-11 and C-13 coefficients between two helium atoms and lithium atoms in their ground states are also given.

引用

页数：9

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