CRITICAL PROPERTIES OF THE IZERGIN-KOREPIN AND SOLVABLE O(N) MODELS AND THEIR RELATED QUANTUM SPIN CHAINS

被引：72

作者：

WARNAAR, SO ^{[1
]}

BATCHELOR, MT ^{[1
]}

NIENHUIS, B ^{[1
]}

机构：

[1] AUSTRALIAN NATL UNIV,INST ADV STUDIES,DEPT APPL MATH,CANBERRA,ACT 2601,AUSTRALIA

来源：

JOURNAL OF PHYSICS A-MATHEMATICAL AND GENERAL | 1992年 / 25卷 / 11期

关键词：

D O I：

10.1088/0305-4470/25/11/016

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

The central charge of the Izergin-Korepin model, the corresponding quantum spin chain, and the O(n) model is calculated analytically via the Bethe ansatz. The calculation extends a technique recently developed for the Zamolodchikov-Fateev model. In addition critical exponents and the central charge for these models are obtained from numerical solutions of the Bethe ansatz equations for finite systems. As a physical application we find the exponents nu = 12/23 and gamma = 53/46 for the THETA-transition of polymers in two dimensions.

引用

页码：3077 / 3095

页数：19

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