Coupled electrons and pair fluctuations in two dimensions: A transition to superconductivity in a conserving approximation

被引：23

作者：

Deisz, JJ

Hess, DW

Serene, JW

机构：

[1] Georgetown Univ, Dept Phys, Washington, DC 20057 USA

[2] USN, Complex Syst Theory Branch, Res Lab, Washington, DC 20375 USA

来源：

PHYSICAL REVIEW LETTERS | 1998年 / 80卷 / 02期

基金：

美国国家科学基金会;

关键词：

D O I：

10.1103/PhysRevLett.80.373

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

We report a superconducting transition in the fully conserving fluctuation exchange approximation for a two-dimensional attractive Hubbard model. The transition temperature agrees well with quantum Monte Carlo calculations, but the superfluid density and specific heat near T-c have anomalous temperature dependences for lattice sizes up to 64 x 64.

引用

收藏

页码：373 / 376

页数：4

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