Variational Calculation of the Intrashell 2p2 3Pe States for Heliumlike N5+ and O6+ Ions

Chin. Phys. Lett.

2000, Vol. 17

Issue (5): 343-345 DOI:

Original Articles

Variational Calculation of the Intrashell 2p² ³P^e States for Heliumlike N⁵⁺ and O⁶⁺ Ions

GUAN Xiao-Xu¹;WANG Zhi-Wen^1,2

¹Department of Mathematics and Physics, Wuyi University, Jiangmen, Guangdong 529020 ²Institute of Atomic and Molecular Physics, Jilin University, Changchun 130023

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GUAN Xiao-Xu, WANG Zhi-Wen 2000 Chin. Phys. Lett. 17 343-345

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Abstract Doubly excited intrashell 2p² ³P^e states in heliumlike N⁵⁺ and O⁶⁺ions are calculated by using the original Slater-type wave function and the modified configuration interaction wave function. Using the modified Slater-type wave function having up to 393 and 276 terms for N⁵⁺ and O⁶⁺,we predicted the energy positions of the discrete 2p² ³P^e states for these two heliumlike ions. They are -11.140748676 a.u. and -14.726670741 a.u., respectively. Several expectation values of rin and r12m (-1 ≤ n ≤1, and -1 ≤ m ≤ 2) are also given in the present letter. The present results indicate that the modified Slater-type wave function in which r< and r> coordinates are incorporated is effective and powerful for the description of the 2p² ³P^e state showing strong correlation effect in two-electron systems.

Keywords: 31.10.+z 31.15.Ar 31.25.Jf

Published: 01 May 2000

PACS:	31.10.+z	(Theory of electronic structure, electronic transitions, and chemical binding)
	31.15.Ar
	31.25.Jf

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https://cpl.iphy.ac.cn/ OR https://cpl.iphy.ac.cn/Y2000/V17/I5/0343

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