中国物理B ›› 2016, Vol. 25 ›› Issue (3): 33203-033203.doi: 10.1088/1674-1056/25/3/033203
• ATOMIC AND MOLECULAR PHYSICS • 上一篇 下一篇
Hai-Jun Zhao(赵海军), Wei-Long Liu(刘伟龙), Meng-Li Du(杜孟利)
Hai-Jun Zhao(赵海军)1, Wei-Long Liu(刘伟龙)1, Meng-Li Du(杜孟利)2
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 3/2ħω, where ω is the frequency of the oscillator potential, the quantum results are shown to be in good agreement with the semiclassical results.
中图分类号: (Photodetachment of atomic negative ions)