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

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

2000-02-04

arxiv.org/abs/cond-mat/0002074v1

Phys. Rev. Lett 84 (2000) 4473-4476

Physics

Condensed Matter

Disordered Systems and Neural Networks

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

Scientific paper

10.1103/PhysRevLett.84.4473

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.

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