QUASI-PARTICLE PROPERTIES OF THE 2-DIMENSIONAL HUBBARD-MODEL IN A PROPAGATOR-RENORMALIZED FLUCTUATION-EXCHANGE APPROXIMATION

被引：109

作者：

SERENE, JW

HESS, DW

机构：

[1] Complex Systems Theory Branch, Naval Research Laboratory, Washington

来源：

PHYSICAL REVIEW B | 1991年 / 44卷 / 07期

关键词：

D O I：

10.1103/PhysRevB.44.3391

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

We calculate the self-energy and thermodynamic potential of the two-dimensional Hubbard model in a propagator-renormalized conserving approximation, for lattices as large as 128 x 128 and temperatures as low as 0.002 times the bandwidth. For densities near quarter filling we see no evidence of deviations from the predictions of Fermi-liquid theory, such as those expected in a Luttinger liquid or a marginal Fermi liquid.

引用

页码：3391 / 3394

页数：4

共 12 条

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