Evidence for nontrivial ground-state structure of 3d +/-J spin glasses

被引：40

作者：

Hartmann, AK

机构：

[1] Inst. für Theoretische Physik, 69120 Heidelberg

来源：

EUROPHYSICS LETTERS | 1997年 / 40卷 / 04期

关键词：

D O I：

10.1209/epl/i1997-00483-y

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

Ground states of 3d EA Ising spin glasses are calculated for sizes up to 14(3) using a combination of genetic algorithms and cluster-exact approximation. The generation of a large number of ground states allows the computation of the distribution P(/q/) of overlaps. For increasing size the width of P(/q/) converges to a nonzero Value, indicating a nontrivial ground-state structure for short-range Ising spin glasses.

引用

页码：429 / 434

页数：6

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