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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)† |
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 |
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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).
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Received: 24 October 2011
Revised: 20 November 2011
Accepted manuscript online:
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PACS:
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32.60.+i
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(Zeeman and Stark effects)
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32.80.Gc
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(Photodetachment of atomic negative ions)
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Fund: 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) |
Corresponding Authors:
Zhao Hai-Jun, E-mail:zzzhhj@yahoo.com.cn
E-mail: zzzhhj@yahoo.com.cn
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Cite this article:
Wu Xiao-Qing(吴晓庆), Du Meng-li(杜孟利), and Zhao Hai-Jun(赵海军) Quantum calculations for photodetachment cross sections of H- in an inhomogeneous electric field 2012 Chin. Phys. B 21 043202
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