CRITICAL-BEHAVIOR OF INTEGRABLE MIXED-SPIN CHAINS

被引：30

作者：

ALADIM, SR ^{[1
]}

MARTINS, MJ ^{[1
]}

机构：

[1] INST FIS & QUIM SAO CARLOS, BR-13560 SAO PAULO, BRAZIL

来源：

JOURNAL OF PHYSICS A-MATHEMATICAL AND GENERAL | 1993年 / 26卷 / 12期

关键词：

D O I：

10.1088/0305-4470/26/12/009

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

We construct a mixed spin-1/2 and spin-S integrable model and investigate its finite-size properties. For a certain conformal invariant mixed spin system the central charge can be decomposed in terms of the conformal anomaly of two single integrable models of spin 1/2 and spin (S - 1/2). We also compute the ground-state energy and the sound velocity in the thermodynamic limit.

引用

页码：L529 / L534

页数：6

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