EXACT INTEGER ALGORITHM FOR THE 2-DIMENSIONAL +/-J ISING SPIN-GLASS

被引：93
|
作者：
SAUL, L
KARDAR, M
机构：
[1] Physics Department, Massachusetts Institute of Technology, Cambridge
来源：
PHYSICAL REVIEW E | 1993年 / 48卷 / 05期
关键词：
D O I：
10.1103/PhysRevE.48.R3221
中图分类号：
O35 [流体力学]; O53 [等离子体物理学];
学科分类号：
070204 ; 080103 ; 080704 ;
摘要：
We describe an exact integer algorithm to compute the partition function of a two-dimensional +/-J Ising spin glass. Given a set of quenched random bonds, the algorithm returns the density of states as a function of energy. The computation time is polynomial in the lattice size. We investigate defects, low-lying excitations, and zeros of the partition function in the complex plane. We also discuss the potential to examine other types of quenched randomness.
引用
收藏
页码：R3221 / R3224
页数：4
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