Electron localizability indicator for correlated wavefunctions. I. Parallel-spin pairs

被引:130
作者
Kohout, M
Pernal, K
Wagner, FR
Grin, Y
机构
[1] Max Planck Inst Chem Phys Fester Stoffe, D-01187 Dresden, Germany
[2] Univ Szczecin, Inst Phys, PL-70451 Szczecin, Poland
关键词
electron localizability indicator; configuration interaction; electron localization function;
D O I
10.1007/s00214-004-0615-y
中图分类号
O64 [物理化学(理论化学)、化学物理学];
学科分类号
070304 ; 081704 ;
摘要
The electron localizability indicator (ELI) is based on a functional of the same-spin pair density. It reflects the correlation of the motion of same-spin electrons. In the Hartree-Fock approximation the ELI can be related to the electron localization function (ELF). For correlated wavefunctions the ELI formula differs from the one for the ELF.
引用
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页码:453 / 459
页数:7
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