Equivalence of the Falicov-Kimball and Brandt-Mielsch forms for the free energy of the infinite-dimensional Falicov-Kimball model

被引：9

作者：

Shvaika, AM

Freericks, JK

机构：

[1] Natl Acad Sci Ukraine, Inst Condensed Matter Phys, UA-79011 Lvov, Ukraine

[2] Georgetown Univ, Dept Phys, Washington, DC 20057 USA

来源：

PHYSICAL REVIEW B | 2003年 / 67卷 / 15期

关键词：

D O I：

10.1103/PhysRevB.67.153103

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Falicov and Kimball proposed a real-axis form for the free energy of the Falicov-Kimball model that was modified for the coherent potential approximation by Plischke. Brandt and Mielsch proposed an imaginary-axis form for the free energy of the dynamical mean field theory solution of the Falicov-Kimball model. It has long been known that these two formulas are numerically equal to each other; an explicit derivation showing this equivalence is presented here.

引用

页数：3

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