FORMULATION AND NUMERICAL RESULTS OF THE TRANSFER-MATRIX METHOD FOR QUANTUM SPIN CHAINS

被引：41

作者：

DELICA, T

LESCHKE, H

机构：

[1] Institut für Theoretische Physik, Universität Erlangen-Nürnberg, D-8520 Erlangen

来源：

PHYSICA A-STATISTICAL MECHANICS AND ITS APPLICATIONS | 1990年 / 168卷 / 02期

关键词：

D O I：

10.1016/0378-4371(90)90028-Q

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

We give a novel and explicit description of the numerical transfer-matrix method for quantum spin chains in thermal equilibrium, based on a real-space Trotter decomposition of the corresponding statistical operator. We apply the method to a spin- 1 2 chain with a magnetic field and varying anisotropy in the nearest-neighbor exchange interaction. Some of the results are compared with exact ones which are available in limiting cases. © 1990.

引用

页码：736 / 767

页数：32

共 82 条

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