MANY-BODY CORRELATIONS IN QUANTUM ANTIFERROMAGNETS - A MICROSCOPIC COUPLED-CLUSTER APPROACH

被引：57

作者：

BISHOP, RF

PARKINSON, JB

XIAN, Y

机构：

[1] Department of Mathematics, University of Manchester, Institute of Science and Technology, Manchester M60 1QD

来源：

PHYSICAL REVIEW B | 1991年 / 43卷 / 16期

关键词：

D O I：

10.1103/PhysRevB.43.13782

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

The coupled-cluster method of many-body theory is applied to anisotropic quantum antiferromagnets in one and two dimensions. It is found to give good results for ground-state and excited-state energies and the staggered magnetization. It also gives a qualitatively correct description of the entire one-dimensional Heisenberg-Ising phase and the phase change in one dimension as the anisotropy decreases.

引用

页码：13782 / 13785

页数：4

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