Quantum and semiclassical studies on photodetachment cross sections of H- in a harmonic potential

被引：6

作者：

Zhao, Hai-Jun ^{[1
,2
]}

Liu, Wei-Long ^{[1
,2
]}

Du, Meng-Li ^{[3
]}

机构：

[1] Shanxi Normal Univ, Sch Phys & Informat Sci, Linfen 041004, Peoples R China

[2] Shanxi Normal Univ, Ctr Molecules Res, Linfen 041004, Peoples R China

[3] Chinese Acad Sci, Inst Theoret Phys, State Key Lab Theoret Phys, Beijing 100190, Peoples R China

来源：

CHINESE PHYSICS B | 2016年 / 25卷 / 03期

基金：

中国国家自然科学基金;

关键词：

photodetachment; harmonic oscillator potential; closed-orbit theory; CLOSED CLASSICAL ORBITS; MAGNETIC-FIELDS; ELECTRIC-FIELD; SPECTRA; IONIZATION; ATOMS; ORIENTATION; FORMULAS;

D O I：

10.1088/1674-1056/25/3/033203

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

The photodetachment cross section of H- in a linear harmonic oscillator potential is investigated. This system provides a rare example that can be studied analytically by both quantum and semiclassical methods with some approximations. The formulas of the cross section for different laser polarization directions are explicitly derived by both the traditional quantum approach and closed-orbit theory. In the traditional quantum approach, we calculate the cross sections in coordinate representation and momentum representation, and get the same formulas. We compare the quantum formulas with closed-orbit theory formulas, and find that when the detachment electron energy is larger than 3/2 (h) over bar omega, where omega is the frequency of the oscillator potential, the quantum results are shown to be in good agreement with the semiclassical results.

引用

页数：6

共 26 条

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