Defect energy with conjugate boundary conditions in spin-glass models in two dimensions

被引：22

作者：

Matsubara, F ^{[1
]}

Shirakura, T

Shiomi, M

机构：

[1] Tohoku Univ, Dept Appl Phys, Sendai, Miyagi 9808579, Japan

[2] Iwate Med Univ, Fac Humanities & Social Sci, Morioka, Iwate 020, Japan

来源：

PHYSICAL REVIEW B | 1998年 / 58卷 / 18期

关键词：

D O I：

10.1103/PhysRevB.58.R11821

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

We calculate the naive defect energy Delta E of Ising spin glass (SG) models in two dimensions using conjugate boundary conditions. We predict that, in the +/-J model, the averaged value <(Delta E)over bar> converges to some nonzero value in the thermodynamic limit in contrast with <(Delta E)over bar>=0 in the Gaussian model. This prediction supports a recent Monte Carlo prediction of the presence of the SG phase at finite temperatures in the +/-J Ising model. We also calculate the interface free energy to confirm it. [S0163-1829(98)50842-9].

引用

页码：R11821 / R11824

页数：4

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