中国物理B ›› 2012, Vol. 21 ›› Issue (4): 43202-043202.doi: 10.1088/1674-1056/21/4/043202

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吴晓庆1,杜孟利2,赵海军1   

  • 收稿日期:2011-10-24 修回日期:2011-11-20 出版日期:2012-02-29 发布日期:2012-02-29
  • 通讯作者: 赵海军, E-mail:zzzhhj@yahoo.com.cn E-mail:zzzhhj@yahoo.com.cn

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

Wu Xiao-Qing(吴晓庆)a), Du Meng-li(杜孟利)b), and Zhao Hai-Jun(赵海军)a)†   

  1. 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 100080, China
  • Received:2011-10-24 Revised:2011-11-20 Online:2012-02-29 Published:2012-02-29
  • Contact: Zhao Hai-Jun, E-mail:zzzhhj@yahoo.com.cn E-mail:zzzhhj@yahoo.com.cn
  • Supported by:
    Project supported by the National Natural Science Foundation of China(Grant Nos.10804066 and 11074260)and the Natural Science Foundation of Shanxi Province of China(Grant No.2009011004)

Abstract: 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).

Key words: photodetachment, gradient electric field, closed-orbit theory

中图分类号:  (Zeeman and Stark effects)

  • 32.60.+i
32.80.Gc (Photodetachment of atomic negative ions)