Yang-Lee zero analysis of a 2D Hubbard model

被引：0

作者：

Abraham, E. ^{[1
]}

Barbour, I. M. ^{[2
]}

Cullen, P. H. ^{[1
]}

Klepfish, E. G. ^{[3
]}

Pike, E. R. ^{[3
]}

Sarkar, S. ^{[3
]}

机构：

[1] Heriot Watt Univ, Dept Phys, Edinburgh EH14 4AS, Midlothian, Scotland

[2] Univ Glasgow, Dept Phys, Glasgow G12 8QQ, Lanark, Scotland

[3] Kings Coll London, Wheatstone Phys Lab, London WC2R 2LS, England

来源：

PHYSICA B-CONDENSED MATTER | 1995年 / 206卷

关键词：

D O I：

10.1016/0921-4526(94)00561-9

中图分类号：

O469 [凝聚态物理学];

学科分类号：

070205 ;

摘要：

Yang-Lee analysis of the grand canonical partition function for a Hubbard Model at finite doping is presented. Evaluating the zeros of this function in the complex chemical-potential plane, we observe an onset of a phase transition when the zeros approach the positive real half-axis with spatial increase of the simulated system. The peak of electronic susceptibility is located in the vicinity of the relevant zeros.

引用

页码：702 / 704

页数：3

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