GREEN-FUNCTION MONTE-CARLO STUDY OF THE T-J MODEL

被引：35
|
作者：
BONINSEGNI, M [1 ]
MANOUSAKIS, E [1 ]
机构：
[1] FLORIDA STATE UNIV,SUPERCOMP COMPUTAT RES INST,TALLAHASSEE,FL 32306
来源：
PHYSICAL REVIEW B | 1992年 / 46卷 / 01期
关键词：
D O I：
10.1103/PhysRevB.46.560
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
We show how the Green's-function Monte Carlo method can be used to compute accurately the ground-state energy of the two-dimensional t-J model for lattices of large size. This is demonstrated for the case of a single hole, with the aid of suitable initial and guidance functions. Our transient estimates for the ground-state energy of the 4 x 4 lattice are in remarkable agreement with the exact values; we report results for lattices of significantly larger size than 4 x 4.
引用
收藏
页码：560 / 563
页数：4
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