SUPERFLUID DENSITY AND THE DRUDE WEIGHT OF THE HUBBARD-MODEL

被引：222

作者：

SCALAPINO, DJ

WHITE, SR

ZHANG, SC

机构：

[1] UNIV CALIF IRVINE, DEPT PHYS, IRVINE, CA 92717 USA

[2] IBM CORP, DIV RES, ALMADEN RES CTR, SAN JOSE, CA 95120 USA

来源：

PHYSICAL REVIEW LETTERS | 1992年 / 68卷 / 18期

关键词：

D O I：

10.1103/PhysRevLett.68.2830

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

We study the superfluid density and the Drude weight of the Hubbard model by investigating two different limiting behaviors of the current-current correlation function. These quantities provide criteria which allow one to distinguish between superconducting, metallic, and insulating ground states of an interacting many-body system. Monte Carlo calculations are performed to study these quantities.

引用

页码：2830 / 2833

页数：4

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