MOMENT-CONSERVING DECOUPLING PROCEDURE FOR MANY-BODY PROBLEMS

被引：36

作者：

TAHIRKEH.RA

JARRETT, HS

机构：

[1] Central Research Department, E. I. du Pont de Nemours and Company, Wilmington

[2] Department of Physics, Temple University, Philadelphia

来源：

PHYSICAL REVIEW | 1969年 / 180卷 / 02期

关键词：

D O I：

10.1103/PhysRev.180.544

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

A new, well-defined procedure for linearizing double-time, statistical Green's functions is proposed. The resultant spectral function automatically conserves the first several frequency moments. This compares very favorably with the usual mean-field decoupling results, which conserve only the first (and, rarely, up to three) frequency moments. © 1969 The American Physical Society.

引用

页码：544 / &

共 6 条

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PROCEEDINGS OF THE ROYAL SOCIETY OF LONDON SERIES A-MATHEMATICAL AND PHYSICAL SCIENCES, 1963, 276 (1364) :238-+

[5]

Mattuck RD., 1967, GUIDE FEYNMAN DIAGRA

[6] 2-TIME GREEN FUNCTIONS IN STATISTICAL PHYSICS [J].

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USPEKHI FIZICHESKIKH NAUK, 1960, 71 (01) :71-116

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