| 锂原子能级和光学振子强度的相对论性理论研究 |
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| 作者姓名： | 王泽 屈一至 胡骁骊 |
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| 作者单位： | 中国科学院研究生院材料科学与光电技术学院, 北京 100049 |
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| 基金项目： | 国家自然科学基金(10876043)资助 |
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| 摘 要： | 应用相对论多通道理论,计算锂原子1s2ns 2S,1s2np 2P,1s2nd 2D和1s2nf 2F系列束缚态和相邻连续态的本征量子数亏损,并拟合得到量子亏损函数,进而计算1s2np 2P系列n=7~60的电离能和量子数亏损,计算结果与最新的实验值相符合. 采用相对论多组态相互作用方法计算锂原子1s22s→1s2np1/2偶极跃迁光学振子强度,结果表明,通过包含单、双电子激发组态考虑电子关联作用,计算结果有很大的改善.
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| 关 键 词： | 相对论多通道理论 组态相互作用理论 量子数亏损 光学振子强度 |
| 收稿时间： | 2011-04-26 |
| 修稿时间： | 2011-05-23 |
Relativistic treatment for energy levels and oscillator strength of the lithium atom |
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| Authors: | WANG Ze QU Yi-Zhi HU Xiao-Li |
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| Institution: | College of Materials Science and Opto-Electronic Technology,Graduate University, Chinese Academy of Sciences,Beijing 100049,China |
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| Abstract: | Relativistic multichannel theory is used to calculate eigen quantum defects of 1s2ns 2S, 1s2np 2P, 1s2nd 2D, and 1s2nf 2F of lithium, and then the quantum defect functions are fitted. Ionization potentials and quantum defects of 1s2np 2P(n=7~60) are obtained, and the results are in good agreement with the latest experiment. Using the relativistic configuration interaction method, the dipole transition oscillator strength of 1s22s→1s2np1/2 are also calculated, and the calculations show that inclusion of one- and two-electron excitation configurations will significantly improve the results. |
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| Keywords: | relativistic multichannel theory configuration interaction theory quantum defect oscillator strength |
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