五电子氩离子2 p ~（3/2）-2 p ~（1/2）跃迁能的QED计算
QED calculation of the 2p3/2-2p1/2 transition energy in five-electron ion of argon
摘要：
我们用量子电动力学从头计算方法计算了氩离子的五电子态（1 s）^2（2s）^22 p_{3/2} -（1 s）^2（2s）^22 p_{1/2}的跃迁能.计算是从有效屏蔽势近似出发，用微扰理论进行的。四种不同类型的筛选潜力被认为是。严格的QED计算的两个最低阶QED和电子相关效应相结合的近似评估的第三和更高阶的电子相关的贡献。得到的波长的理论值为441.261（70）nm（空气），与实验值441.2559（1）nm（空气）完全一致。
英文摘要：
We perform ab initio QED calculation of the (1s)^2(2s)^22p_{3/2} - (1s)^2(2s)^22p_{1/2} transition energy in the five-electron ion of argon. The calculation is carried out by perturbation theory starting with an effective screening potential approximation. Four different types of the screening potentials are considered. The rigorous QED calculations of the two lowest-order QED and electron-correlation effects are combined with approximate evaluations of the third- and higher-order electron-correlation contributions. The theoretical value for the wavelength obtained amounts to 441.261(70) (nm, air) and perfectly agrees with the experimental one, 441.2559(1) (nm, air).
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