Barriers, trapping times, and overlaps between local minima in the dynamics of the disordered Ising p-spin model

Daniel A. Stariolo and Leticia F. Cugliandolo
Phys. Rev. E 102, 022126 – Published 17 August 2020

Abstract

We study the low-temperature out-of-equilibrium Monte Carlo dynamics of the disordered Ising p-spin Model with p=3 and a small number of spin variables. We focus on sequences of configurations that are stable against single spin flips obtained by instantaneous gradient descent from persistent ones. We analyze the statistics of energy gaps, energy barriers, and trapping times on subsequences such that the overlap between consecutive configurations does not overcome a threshold. We compare our results to the predictions of various trap models finding the best agreement with the step model when the p-spin configurations are constrained to be uncorrelated.

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  • Received 20 April 2020
  • Accepted 28 July 2020

DOI:https://doi.org/10.1103/PhysRevE.102.022126

©2020 American Physical Society

Physics Subject Headings (PhySH)

Statistical Physics & Thermodynamics

Authors & Affiliations

Daniel A. Stariolo1 and Leticia F. Cugliandolo2,3

  • 1Universidade Federal Fluminense, Departamento de Física and National Institute of Science and Technology for Complex Systems, Av. Gal. Milton Tavares de Souza s/n, Campus da Praia Vermelha, 24210-346 Niterói, RJ, Brazil
  • 2Sorbonne Université, Laboratoire de Physique Théorique et Hautes Energies, UMR 7589 CNRS, Tour 13, 5ème Etage, 4 Place Jussieu, 75252 Paris 05, France
  • 3Institut Universitaire de France, 1 rue Descartes, 75231 Paris Cedex 05, France

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Issue

Vol. 102, Iss. 2 — August 2020

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