Numerical study of the overlap Lee-Yang singularities in the three-dimensional Edwards-Anderson model

被引：2

作者：

Banos, R. A. ^{[1
,2
]}

Gil-Narvion, J. M. ^{[2
]}

Monforte-Garcia, J. ^{[1
,2
]}

Ruiz-Lorenzo, J. J. ^{[2
,3
]}

Yllanes, D. ^{[2
,4
]}

机构：

[1] Univ Zaragoza, Dept Fis Teor, E-50009 Zaragoza, Spain

[2] Inst Biocomp & Fis Sistemas Complejos BIFI, E-50018 Zaragoza, Spain

[3] Univ Extremadura, Dept Fis, E-06071 Badajoz, Spain

[4] Univ Roma La Sapienza, Dipartimento Fis, I-00185 Rome, Italy

来源：

JOURNAL OF STATISTICAL MECHANICS-THEORY AND EXPERIMENT | 2013年

基金：

欧洲研究理事会;

关键词：

critical exponents and amplitudes (theory); finite-size scaling; spin glasses (theory); PARTITION-FUNCTION ZEROS; ISING SPIN-GLASS; COMPLEX ZEROS; SIMULATIONS; STRENGTH; JANUS;

D O I：

10.1088/1742-5468/2013/02/P02031

中图分类号：

O3 [力学];

学科分类号：

08 ; 0801 ;

摘要：

We have characterized numerically, using the Janus computer, the Lee Yang complex singularities related to the overlap in the 3D Ising spin-glass with binary couplings over a wide range of temperatures (both in the critical and in the spin-glass phase). Studying the behavior of the zeros at the critical point, we have obtained an accurate measurement of the anomalous dimension in very good agreement with the values quoted in the literature. In addition, by studying the density of the zeros we have been able to characterize the phase transition and to investigate the Edwards Anderson order parameter in the spin-glass phase, finding agreement with the values obtained using more conventional techniques.

引用

页数：17

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