Critical behavior of the two-dimensional step model

被引：23
|
作者：
Irving, AC
Kenna, R
机构：
[1] Department of Applied Mathematics and Theoretical Physics, University of Liverpool
来源：
PHYSICAL REVIEW B | 1996年 / 53卷 / 17期
关键词：
D O I：
10.1103/PhysRevB.53.11568
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
We use finite-size scaling of Lee-Yang partition function zeros to study the critical behavior of the two-dimensional step or sgn O(2) model. We present evidence that, like the closely related XY model, this has a phase transition from a disordered high-temperature phase to a low-temperature massless phase where the model remains critical. The critical parameters (including logarithmic corrections) are compatible with those of the XY model indicating that both models belong to the same universality class.
引用
收藏
页码：11568 / 11571
页数：4
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