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Two Time Scales and Violation of the Fluctuation-Dissipation Theorem in a Finite Dimensional Model for Structural Glasses

2000/02/04 by Federico Ricci-Tersenghi, Federico Ricci‐Tersenghi, Daniel A. Stariolo +1 · 38 citations
Economics, Econometrics and Finance · Materials Science · Physics and Astronomy · #Complex Systems and Time Series Analysis #Condensed matter physics #Constant (computer programming) #Dissipation #Dynamics (music) #Fluctuation-dissipation theorem #Ising model #Lattice (music) #Material Dynamics and Properties #Physics #Statistical physics #Theoretical and Computational Physics #Thermodynamics #Time constant #cond-mat.dis-nn

paper · pdf · open access · doi:10.1103/physrevlett.84.4473

published in Physical Review Letters 84(19), 4473-4476 (American Physical Society) · 4 pages, 3 figs, Phys. Rev. Lett. (in press)

arxiv created 2000/02/04 · openalex publication_date 2000/05/08 · arxiv updated 2009/11/30 · openalex created_date 2016/06/24 · openalex updated_date 2026/08/05

Abstract

We study the breakdown of fluctuation-dissipation relations between time-dependent density-density correlations and associated responses following a quench in the chemical potential in the frustrated Ising lattice gas. The corresponding slow dynamics is characterized by two well-separated time scales characterized by a constant value of the fluctuation-dissipation ratio. This result is particularly relevant since activated processes dominate the long-time dynamics of the system.

Citations