Transfer-matrix density-matrix renormalization-group theory for thermodynamics of one-dimensional quantum systems

被引：260

作者：

Wang, XQ ^{[1
]}

Xiang, T ^{[1
]}

机构：

[1] UNIV CAMBRIDGE, INTERDISCIPLINARY RES CTR SUPERCONDUCT, CAMBRIDGE CH3 0HE, ENGLAND

来源：

PHYSICAL REVIEW B | 1997年 / 56卷 / 09期

关键词：

D O I：

10.1103/PhysRevB.56.5061

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

The transfer-matrix density-matrix renormalization-group method for one-dimensional quantum lattice systems has been developed by considering the symmetry property of the transfer matrix and introducing the asymmetric reduced density matrix. We have evaluated a number of thermodynamic quantities of the anisotropic spin-1/2 Heisenberg model using this method and found that the results agree very accurately with the exact ones. The relative errors for the spin susceptibility are less than 10(-3) down to T = 0.01J with 80 states kept.

引用

页码：5061 / 5064

页数：4

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