An efficient implementation of the hierarchical mean-field theory with large block

被引：2
|
作者：
Qin, Jingbo [1 ]
Jie, Quanlin [1 ]
Fan, Zhuo [1 ]
机构：
[1] Wuhan Univ, Dept Phys, Wuhan 430072, Peoples R China
来源：
EUROPEAN PHYSICAL JOURNAL B | 2014年 / 87卷 / 12期
基金：
美国国家科学基金会;
关键词：
DENSITY-MATRIX RENORMALIZATION; 2-DIMENSIONAL HEISENBERG-MODEL; MONTE-CARLO SIMULATIONS; SQUARE LATTICE; SPIN SYSTEMS; QUANTUM; ANTIFERROMAGNET;
D O I：
10.1140/epjb/e2014-50054-0
中图分类号：
O469 [凝聚态物理学];
学科分类号：
070205 ;
摘要：
We present an efficient implementation of the hierarchical mean-field theory with large block in quantum spin systems. The wave function is a product of the large block states. Each large block state is a superposition of products of small block states. Our result is very close to that of the hierarchical mean-field in a numerical cost effective way. We test our method on a frustrated spin lattice.
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收藏
页数：8
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