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

页码：R3221 / R3224

页数：4

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