KINETIC AND EXCHANGE ENERGY DENSITY FUNCTIONALS FOR FINITE SYSTEMS

被引：0
|
作者：
SAMANTA, A
GHOSH, SK
机构：
来源：
JOURNAL OF PHYSICS B-ATOMIC MOLECULAR AND OPTICAL PHYSICS | 1991年 / 24卷 / 09期
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暂无
中图分类号：
O43 [光学];
学科分类号：
070207 ; 0803 ;
摘要：
We propose a new model for the Fermi correlation function for a pair of electrons of the same spin in a system with a finite number of electrons. Using this correlation function, we have derived new expressions for the exchange and kinetic energy density for several atomic systems show good agreement, thus demonstrating the accuracy of prediction of the proposed model.
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页码：2257 / 2265
页数：9
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