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Chinese Physics, 2004, Vol. 13(5): 662-669    DOI: 10.1088/1009-1963/13/5/016
ATOMIC AND MOLECULAR PHYSICS Prev   Next  

Energy and fine structure of 1s2np(n≤9) states for lithium-like systems from Z=11 to 20

Hu Mu-Hong (胡木宏), Wang Zhi-Wen (王治文)
Physics Department, Liaoning Normal University, Dalian 116029, China; Institute of Atomic and Molecular Physics, Jilin University, Changchun 130012, China
Abstract  A new variation method is extended to study the atomic systems with higher nuclear charges and in more highly excited states. The non-relativistic energies of 1s2np (n≤9) states for the lithium-like systems from Z=11 to 20 are calculated using a full-core-plus-correlation method with multi-configuration interaction wavefunctions. Relativistic and mass-polarization effects on the energy are calculated as the first-order perturbation corrections. The fine structures are determined from the expectation values of spin-orbit and spin-other-orbit interaction operators in the Pauli-Breit approximation. The quantum-electrodynamics correction is also included. Our results are compared with experimental data in the literature.
Keywords:  lithium-like system      full-core plus correlation      excitation energy      fine structure  
Received:  01 August 2003      Revised:  15 October 2003      Accepted manuscript online: 
PACS:  32.10.Fn (Fine and hyperfine structure)  
  31.10.+z (Theory of electronic structure, electronic transitions, and chemical binding)  
  31.15.Pf  
  31.30.Jv  
  31.15.Md  
Fund: Project supported by the National Natural Science Foundation of China (Grant No 10174029).

Cite this article: 

Hu Mu-Hong (胡木宏), Wang Zhi-Wen (王治文) Energy and fine structure of 1s2np(n≤9) states for lithium-like systems from Z=11 to 20 2004 Chinese Physics 13 662

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