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Variational Calculation of the Intrashell 2p2 3Pe States for Heliumlike N5+ and O6+ Ions |
GUAN Xiao-Xu1;WANG Zhi-Wen1,2 |
1Department of Mathematics and Physics, Wuyi University, Jiangmen, Guangdong 529020
2Institute of Atomic and Molecular Physics, Jilin University, Changchun 130023
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Cite this article: |
GUAN Xiao-Xu, WANG Zhi-Wen 2000 Chin. Phys. Lett. 17 343-345 |
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Abstract Doubly excited intrashell 2p2 3Pe 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 3Pe 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 3Pe state showing strong correlation effect in two-electron systems.
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Keywords:
31.10.+z
31.15.Ar
31.25.Jf
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Published: 01 May 2000
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