DYNAMICS OF QUASI-PARTICLES IN THE 2-DIMENSIONAL HUBBARD-MODEL

被引：8

作者：

MATTIS, DC ^{[1
]}

DZIERZAWA, M ^{[1
]}

ZOTOS, X ^{[1
]}

机构：

[1] UNIV KARLSRUHE,PHYS HSCH,INST KONDENSIERTEN MAT,W-7500 KARLSRUHE 1,GERMANY

来源：

PHYSICAL REVIEW B | 1990年 / 42卷 / 10期

关键词：

D O I：

10.1103/PhysRevB.42.6787

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

The Hubbard model at half-filling is a collective, antiferromagnetic insulator. We study added electrons or holes. The insulating energy gap and the dispersion of the added carriers are calculated variationally in two dimensions with use of a Monte Carlo evaluation of the electronic correlation functions in the insulating phase. Both Eg and m* are found to be temperature dependent. © 1990 The American Physical Society.

引用

页码：6787 / 6790

页数：4

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