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首页> 外文期刊>中国物理：英文版 >The excitation energies and term energies of the excited states 1s2ns （n=3,4,5） and 1s2nf （n=4,5） of lithium—like systems of Z=11—20
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The excitation energies and term energies of the excited states 1s2ns （n=3,4,5） and 1s2nf （n=4,5） of lithium—like systems of Z=11—20

机译：Z = 11-20的类锂系统的激发态1s2ns（n = 3,4,5）和1s2nf（n = 4,5）的激发能和项能量

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机译：In this paper, the full-core plus correlation (FCPC) and the Ritz method is extended to calculate the non-relativistic energies of 1s2ns (n=3,4,5) and 1s2nf (n=4,5) states and the wavefunctions of the lithium-like systems from Z=11-20. The mass-polarization and the relativistic correction including the kinetic-energy correction, the Darwin term, the electron-electron contact term, and the orbit-orbit interaction are evaluated perturbatively as the first-order correction. The contribution from quantum electrodynamic is also included by using the effective nuclear charge formula. The excited energies, the term-energy and fine structure, are given and compared with the other theoretical calculation and experimental results. It is shown that the correlative wave in the FCPC method embodies well the strong correlation between the 1s2 core and the valence electron.

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