THE EFFECTIVE ELECTRON-ELECTRON INTERACTION IN THE 2D HUBBARD-MODEL

被引：7

作者：

BULUT, N ^{[1
]}

SCALAPINO, DJ ^{[1
]}

机构：

[1] UNIV CALIF SANTA BARBARA,DEPT PHYS,SANTA BARBARA,CA 93106

来源：

JOURNAL OF PHYSICS AND CHEMISTRY OF SOLIDS | 1993年 / 54卷 / 10期

基金：

美国国家科学基金会;

关键词：

2D HUBBARD MODEL; EFFECTIVE ELECTRON ELECTRON INTERACTION; RPA; MONTE-CARLO;

D O I：

10.1016/0022-3697(93)90151-G

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

Monte Carlo results for the irreducible particle-particle interaction in the two-dimensional Hubbard model are compared with a renormalized RPA single spin-fluctuation exchange interaction. Reasonable agreement is found for the parameter range which has been studied, giving support to the idea that the effective electron-electron interaction in the weak to moderately coupled Hubbard model arises from the exchange of single para-antiferromagnetic spin fluctuations.

引用

页码：1109 / 1113

页数：5

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