Inequalities of the electron density at the nucleus and radial expectation values of the ground state for the lithium isoelectronic sequence
Chen Chao (陈超), Wang Zhi-Wen (王治文)
Department of Physics, Liaoning Normal University, Dalian 116029, China; Institute of Atomic and Molecular Physics, Jilin University, Changchun 130023, China
Abstract The electron density at the nucleus, $\rho(0)$, and the radial expectation values, $\langle r^n\rangle$ (-2≤n≤10), of the ground state for the lithium isoelectronic sequence are calculated with a full core plus correlation (FCPC) wavefunctions. By using these obtained expectation values, the accurate inequalities of the electron density at the nucleus and the radial expectation values derived by Gálvez and Porras for these systems are examined and verified. The final results show that FCPC wavefunctions used in this work can give satisfactory results in full configuration space.
Received: 12 December 2002
Revised: 27 January 2003
Accepted manuscript online:
PACS:
31.15.ve
(Electron correlation calculations for atoms and ions: ground state)
Fund: Project supported by the National Natural Science Foundation of China (Grant No 10174029), and by the Education Department of Liaoning Province, China (Grant No 200041010).
Cite this article:
Chen Chao (陈超), Wang Zhi-Wen (王治文) Inequalities of the electron density at the nucleus and radial expectation values of the ground state for the lithium isoelectronic sequence 2003 Chinese Physics 12 604
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