类锂离子(Z=11～20)1s^22s-1s^24p的跃迁能和振子强度

Calculations of 1s^22s-1s^24p Transition Energies and Oscillator Strengths for Lithium-like Systems from Z =11 to 20

利用全实加关联方法计算了类锂离子(Z=11～20)激发态1s24p的能量及精细结构.同时计算了1s22s-1s24p的跃迁能和振子强度.非相对论能量用Rayleigh Ritz变分法确定;相对论和质量极化效应修正用微扰论计算;量子电动力学修正用有效核电荷方法计算.在能级精细结构的计算中不仅考虑了自旋 轨道相互作用还计及自旋 其他轨道相互作用.将得到的计算结果和已有实验数据及物理规律进行了比较.

The full-core plus correlation method(FCPC)is extended to calculate the energies and fine structures of 1s^24p states for the lithium-like systems with nuclear charge from Z =11 to 20.The transition energies(2s()~2S(1/2)-4p()~2P(1/2,3/2))and dipole oscillator strengths are also calculated.The non-relativistic energies and wave functions are calculated by the Rayleigh-Ritz method.Relativistic and mass-polarization effects on the energies are included as the first-order perturbation corrections.The quantum-electrodynamics contributions to the transition energies are estimated by using the effective nuclear charge.Our results are in agreement with the experimental data available in the literature.