收稿日期: 2011-04-26
修回日期: 2011-05-23
网络出版日期: 2012-07-15
基金资助
国家自然科学基金(10876043)资助
Relativistic treatment for energy levels and oscillator strength of the lithium atom
Received date: 2011-04-26
Revised date: 2011-05-23
Online published: 2012-07-15
王泽 , 屈一至 , 胡骁骊 . 锂原子能级和光学振子强度的相对论性理论研究[J]. 中国科学院大学学报, 2012 , 29(4) : 439 -448 . DOI: 10.7523/j.issn.2095-6134.2012.4.002
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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