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
收藏
页码：L529 / L534
页数：6
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