中国物理B ›› 2002, Vol. 11 ›› Issue (2): 120-125.doi: 10.1088/1009-1963/11/2/304

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The fine structure splitting of the level of lithium in Rydberg states

胡文江1, 胡先权2, 孔春阳2   

  1. (1)Department of Electronic Information Engineering,Chongqing University of Post and Telecommunications, Chongqing 400065, China; (2)Department of Physics, Chongqing Normal University, Chongqing 400047, China
  • 收稿日期:2001-07-16 修回日期:2001-10-11 出版日期:2002-02-13 发布日期:2005-06-13
  • 基金资助:
    Project supported by the Natural Science Foundation of Chongqing Education Committee of China (Grant No. 990213) and by the Basic Research of Application of Chongqing Science and Technology Committee, China (Grant No. 199966).

The fine structure splitting of the level of lithium in Rydberg states

Hu Xian-Quan (胡先权)a, Hu Wen-Jiang (胡文江)b,  Kong Chun-Yang (孔春阳)a   

  1. a Department of Physics, Chongqing Normal University, Chongqing 400047, China; b Department of Electronic Information Engineering,Chongqing University of Post and Telecommunications, Chongqing 400065, China
  • Received:2001-07-16 Revised:2001-10-11 Online:2002-02-13 Published:2005-06-13
  • Supported by:
    Project supported by the Natural Science Foundation of Chongqing Education Committee of China (Grant No. 990213) and by the Basic Research of Application of Chongqing Science and Technology Committee, China (Grant No. 199966).

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摘要： The Hamiltonian of the four-body problem for a lithium atom is expanded in series. The level shift and level formula of a lithium atom in Rydberg states are achieved by means of the calculation of polarization of the atomic core (including the contribution of dipole, quadrupole and octupole components). We also consider the effect of relativity theory, the orbital angular momentum L and the spin angular momentum S coupling scheme (LS coupling) and high-order correction of the effective potential to the level shift. The fine structure splitting (N=5-12, L=4-9, J=L±1/2) and level intervals in Rydberg states have been calculated by the above-mentioned formula and compared with recent experimental data.

Abstract: The Hamiltonian of the four-body problem for a lithium atom is expanded in series. The level shift and level formula of a lithium atom in Rydberg states are achieved by means of the calculation of polarization of the atomic core (including the contribution of dipole, quadrupole and octupole components). We also consider the effect of relativity theory, the orbital angular momentum L and the spin angular momentum S coupling scheme (LS coupling) and high-order correction of the effective potential to the level shift. The fine structure splitting (N=5-12, L=4-9, J=L±1/2) and level intervals in Rydberg states have been calculated by the above-mentioned formula and compared with recent experimental data.

Key words: energy levels in Rydberg states, polarization of atomic core, level interval, fine structure

中图分类号:  (Fine and hyperfine structure)

  • 32.10.Fn
32.10.Dk (Electric and magnetic moments, polarizabilities) 32.70.Jz (Line shapes, widths, and shifts)