Fermi surface of the 2D Hubbard model at weak coupling

被引：19

作者：

Halboth, CJ

Metzner, W

机构：

[1] Sektion Physik, Universität München, D-80333 München

来源：

ZEITSCHRIFT FUR PHYSIK B-CONDENSED MATTER | 1997年 / 102卷 / 04期

关键词：

D O I：

10.1007/s002570050318

中图分类号：

O469 [凝聚态物理学];

学科分类号：

070205 ;

摘要：

We calculate the interaction-induced deformation of the Fermi surface in the two-dimensional Hubbard model within second order perturbation theory. Close to half-filling, interactions enhance anisotropies of the Fermi surface, but they never modify the topology of the Fermi surface in the weak coupling regime.

引用

收藏

页码：501 / 504

页数：4

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