Free-energy barriers in the Sherrington-Kirkpatrick model

被引：0
作者：
Aspelmeier, T. [1 ]
Moore, M. A. [2 ]
机构：
[1] Georg August Univ Gottingen, Inst Theoret Phys, D-37077 Gottingen, Germany
[2] Univ Manchester, Dept Phys & Astron, Manchester M13 9PL, Lancs, England
来源：
PHYSICAL REVIEW E | 2022年 / 105卷 / 03期
关键词：
METASTABLE STATES; SOLVABLE MODEL; MASSLESS MODES; SPIN; DYNAMICS; STABILITY; BREAKING; NUMBER; FIELD;
D O I：
10.1103/PhysRevE.105.034138
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：
The Sherrington-Kirkpatrick spin-glass model is investigated by means of Monte Carlo simulations by employing a combination of the multi-overlap algorithm with parallel tempering methods. We investigate the finite-size scaling behaviour of the free-energy barriers which are visible in the probability density of the Parisi overlap parameter. Assuming that the mean barrier height diverges with the number of spins N as N-alpha, our data show good agreement with the theoretical value alpha = 1/3.
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页数：14
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