Exact exchange-correlation kernel for dynamic response properties and excitation energies in density-functional theory

被引：72

作者：

Gorling, A ^{[1
]}

机构：

[1] Tech Univ Munich, Lehrstuhl Theoret Chem, D-85747 Garching, Germany

来源：

PHYSICAL REVIEW A | 1998年 / 57卷 / 05期

关键词：

D O I：

10.1103/PhysRevA.57.3433

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

An exact expression for the exchange kernel (the frequency-dependent functional derivative of the exchange potential with respect to the electron density) is derived. For the correlation kernel a coupling-constant expansion is presented. A modified coupled Kohn-Sham equation for an efficient "exact-exchange" calculation of dynamic polarizabilities and excitation energies is suggested.

引用

页码：3433 / 3436

页数：4

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