Two time scales and FDT violation in a Finite Dimensional Model for Structural Glasses

Abstract

We study the breakdown of fluctuation-dissipation relations between time dependent density-density correlations and associated responses following a quench in chemical potential in the Frustrated Ising Lattice Gas. The corresponding slow dynamics is characterized by two well separated time scales which are characterized by a constant value of the fluctuation-dissipation ratio. This result is particularly relevant taking into account that activated processes dominate the long time dynamics of the system.

4 pages, 3 figs, Phys. Rev. Lett. (in press)

References in corpus (2)

• Observation of Fluctuation-Dissipation-Theorem Violations in a Structural Glass
• Off equilibrium dynamics of the Frustrated Ising Lattice Gas

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