原子电四极矩E2光谱跃迁几率的算符形式和多电子效应研究

Operator forms and many-electron correlation effects for atomic electron quadrupole transition probabilities and oscillator strengths

利用多组态Ｄｉｒａｃ－Ｆｏｃｋ广义扩展平均能级（ＭＣＤＦ－ＥＡＬ）方法系统地计算了铍Ｌｉｌ３ｄ→２ｓ、３ｐ→２ｐ，碳ＣⅢ２ｓ３ｄ １Ｄ２→２ｓ２１Ｓ０、２ｐ２１Ｓ０，钙ＣａＩ ４ｓ３ｄ １Ｄ２→４ｓ２１Ｓ０，钛ＴｉⅢ３ｄ２３Ｐ→３ｄ２３Ｆ、３ｄ４ｓ３Ｄ→３ｄ２３Ｆ，铜ＣｕⅡ３ｄ９４ｓ１Ｄ２→３ｄ１０１Ｓ０，锌ＺｎＩ ４ｓ４ｄ１Ｄ２→４ｓ２１Ｓ０和铯ＣｓＩ ５ｄ→６ｓ等电四极矩Ｅ２光谱跃迁的能级间隔、跃迁几率和振子强度，计算中考虑了重要的核的有限体积效应、Ｂｒｅｉｔ修正和ＱＥＤ修正，所得结果和最近的实验数据及其它理论计算值进行了比较。

A fully relativistic Multiconfiguration Dirac-Fock method with Breit and QED corrections is used to calculate the forbidden transition energy level separations and trasition probabilities and oscillator strengths for the transitions LiI 3d→2s、3p→2p,CⅢ 2s3d 1D2→2s21S0、2p21S0, CaI 4s3d 1D2→4s21S0, TiⅢ 3d23P→3d23F, CuⅡ 3d94s 1D2→3d101S0, ZnI 4s4d 1D2-4s21S0 and CsI 5d→6s.In calculation, we consider significant Breit and QED corrections, the results are in good agreements with recent experimental data and other theoretical values.