| Energy levels of ls2n d （n ≤ 9） states for lithium-like ions |
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| 作者姓名： | Hu Mu-Hong Wang Zhi-Wen Zeng Fan-Wei Wang Tao Wang Jing |
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| 作者单位： | School of Physics and Electronic Technology, Liaoning Normal University, Dalian 116029, China |
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| 基金项目： | Project supported by the National Natural Science Foundation of China （Grant No. 11074102） and the Natural Science Foundation of Liaoning Province of China （Grant No. 20092172）. |
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| 摘 要： | ![]()
The full-core plus correlation method with multi-configuration interaction wave functions is extended to the calcu- lation of the non-relativistic energies of ls2nd （n ≤9） states for the lithium isoelectronic sequence from Z = 11 to 20. Relativistic and mass-polarization effects on the energy are calculated as the first-order perturbation correction. The quantum-electrodynamics correction is also included. The fine structure splittings are determined from the expectation values of spin-orbit and spin-other-orbit interaction operators in the Pauli-Breit approximation. Combining the term energies of lowly excited states obtained with the quantum defects calculated by the single channel quantum defect theory, each of which is a smooth function of energy and approximated by a weakly varying function of energy, the ion potentials of highly excited states （n ≥ 6） are obtained with the semi-empirical iteration method. The results are compared with experimental data in the literature and found to be closely consistent with the regularity.
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| 关 键 词： | 离子水 能源 类锂 非相对论能量 量子电动力学 自旋相互作用 组态相互作用 质量极化效应 |
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