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.
Received: 01 August 2003
Revised: 15 October 2003
Accepted manuscript online:
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
Altmetric calculates a score based on the online attention an article receives. Each coloured thread in the circle represents a different type of online attention. The number in the centre is the Altmetric score. Social media and mainstream news media are the main sources that calculate the score. Reference managers such as Mendeley are also tracked but do not contribute to the score. Older articles often score higher because they have had more time to get noticed. To account for this, Altmetric has included the context data for other articles of a similar age.
