SERIES EXPANSION AND CAM STUDY OF THE NONUNIVERSAL BEHAVIOR OF THE SYMMETRICAL 16-VERTEX MODEL

被引：11

作者：

KOLESIK, M

SAMAJ, L

机构：

[1] Institute of Physics, Slovak Academy of Sciences, Bratislava

来源：

JOURNAL OF STATISTICAL PHYSICS | 1993年 / 72卷 / 5-6期

关键词：

VERTEX MODEL; CRITICAL BEHAVIOR; NONUNIVERSALITY; COHERENT ANOMALY METHOD; SERIES EXPANSION;

D O I：

10.1007/BF01048186

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

The phase diagram and the critical indices are investigated for the symmetric 16-vertex model on the square lattice by combining a variational series expansion and the coherent anomaly method. The nonuniversal critical exponents smoothly interpolate between two exactly solvable cases, namely the Baxter eight-vertex model and the Ising model.

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页码：1203 / 1226

页数：24

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