Quantum calculations for photodetachment cross sections of H- in an inhomogeneous electric field

We calculate the photodetachment cross sections of H- in a gradient electric field based on traditional quantum approach. The system provides a rare example that the formulas for the cross sections can be explicitly derived by both the quantum approach and closed-orbit theory. The quantum results ar...

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Bibliographic Details
Published inChinese physics B Vol. 21; no. 4; pp. 219 - 224
Main Author 吴晓庆 杜孟利 赵海军
Format Journal Article
LanguageEnglish
Published 01.04.2012
Subjects
位值
光剥离截面
梯度
横截面
物理
量子计算
闭合轨道理论
非均匀电场
Online AccessGet full text
ISSN1674-1056
2058-3834
DOI10.1088/1674-1056/21/4/043202

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Summary:We calculate the photodetachment cross sections of H- in a gradient electric field based on traditional quantum approach. The system provides a rare example that the formulas for the cross sections can be explicitly derived by both the quantum approach and closed-orbit theory. The quantum results are compared with those of the closed-orbit theory. The correct phase values in the closed-orbit theory are essential and necessary to produce accurate cross sections. Our quantum results remove some previous ambiguities in assigning the phase values in the closed-orbit theory （G. C. Yang and M. L. Du 2007 Phys. Rev. A 75 029904E）.
Bibliography:Wu Xiao-qing, Du Meng-Li, and Zhao Hai-Jun a） School of Physics and Information Science and Center for Molecules Research, Shanxi Normal University, Linfen 041004, China b） Institute of Theoretical Physics, Chinese Academy of Sciences, P. O. Box 2735, Beijing 100190, China
We calculate the photodetachment cross sections of H- in a gradient electric field based on traditional quantum approach. The system provides a rare example that the formulas for the cross sections can be explicitly derived by both the quantum approach and closed-orbit theory. The quantum results are compared with those of the closed-orbit theory. The correct phase values in the closed-orbit theory are essential and necessary to produce accurate cross sections. Our quantum results remove some previous ambiguities in assigning the phase values in the closed-orbit theory （G. C. Yang and M. L. Du 2007 Phys. Rev. A 75 029904E）.
11-5639/O4
photodetachment, gradient electric field, closed-orbit theory
ISSN:1674-1056
2058-3834
DOI:10.1088/1674-1056/21/4/043202