NUMERICAL-SOLUTION OF PARQUET EQUATIONS FOR THE ANDERSON IMPURITY MODEL

被引：24

作者：

CHEN, CX

BICKERS, NE

机构：

[1] Department of Physics, University of Southern California, Los Angeles

来源：

SOLID STATE COMMUNICATIONS | 1992年 / 82卷 / 05期

基金：

美国国家科学基金会;

关键词：

D O I：

10.1016/0038-1098(92)90358-G

中图分类号：

O469 [凝聚态物理学];

学科分类号：

070205 ;

摘要：

A complete numerical solution of the "basic" parquet equations for the Anderson impurity model is obtained and tested for the first time. The static magnetic susceptibility is computed and compared with Bethe Ansatz results, and quantitative agreement is achieved for intermediate coupling strengths. It is demonstrated that a simplified "pseudopotential parquet" approximation yields a two-particle vertex in nearly quantitative agreement with the full solution throughout a wide temperature range.

引用

收藏

页码：311 / 315

页数：5

相关论文

共 20 条

[1] LOCALIZED MAGNETIC STATES IN METALS [J].

ANDERSON, PW .

PHYSICAL REVIEW, 1961, 124 (01) :41-&

[2] QUASIPARTICLE INTERACTION IN LIQUID HE-3 [J].

BABU, S ;

BROWN, GE .

ANNALS OF PHYSICS, 1973, 78 (01) :1-38

[3] CONSERVATION LAWS AND CORRELATION FUNCTIONS [J].

BAYM, G ;

KADANOFF, LP .

PHYSICAL REVIEW, 1961, 124 (02) :287-+

[4] SELF-CONSISTENT APPROXIMATIONS IN MANY-BODY SYSTEMS [J].

BAYM, G .

PHYSICAL REVIEW, 1962, 127 (04) :1391-&

[5]

Bickers N E, UNPUB

[6] CONSERVING APPROXIMATIONS FOR STRONGLY FLUCTUATING ELECTRON-SYSTEMS .1. FORMALISM AND CALCULATIONAL APPROACH [J].

BICKERS, NE ;

SCALAPINO, DJ .

ANNALS OF PHYSICS, 1989, 193 (01) :206-251

[7] CONSERVING APPROXIMATIONS FOR STRONGLY FLUCTUATING ELECTRON-SYSTEMS .2. NUMERICAL RESULTS AND PARQUET EXTENSION [J].

BICKERS, NE ;

WHITE, SR .

PHYSICAL REVIEW B, 1991, 43 (10) :8044-8064

[8] DEPRESSION OF THE SUPERCONDUCTING TRANSITION-TEMPERATURE BY MAGNETIC-IMPURITIES - EFFECT OF KONDO RESONANCE IN THE F DENSITY OF STATES [J].

BICKERS, NE ;

ZWICKNAGL, GE .

PHYSICAL REVIEW B, 1987, 36 (13) :6746-6772

[9] PARQUET EQUATIONS FOR NUMERICAL SELF-CONSISTENT-FIELD THEORY [J].

BICKERS, NE .

INTERNATIONAL JOURNAL OF MODERN PHYSICS B, 1991, 5 (1-2) :253-270

[10] CONSERVING APPROXIMATIONS FOR STRONGLY CORRELATED ELECTRON-SYSTEMS - BETHE-SALPETER-EQUATION AND DYNAMICS FOR THE TWO-DIMENSIONAL HUBBARD-MODEL [J].

BICKERS, NE ;

SCALAPINO, DJ ;

WHITE, SR .

PHYSICAL REVIEW LETTERS, 1989, 62 (08) :961-964