Aging in the glass phase of a 2D random periodic elastic system

Abstract

Using RG we investigate the non-equilibrium relaxation of the (Cardy-Ostlund) 2D random Sine-Gordon model, which describes pinned arrays of lines. Its statics exhibits a marginal ($\theta =0$) glass phase for $T<T_g$ described by a line of fixed points. We obtain the universal scaling functions for two-time dynamical response and correlations near $T_g$ for various initial conditions, as well as the autocorrelation exponent. The fluctuation dissipation ratio is found to be non-trivial and continuously dependent on $T$.

5 pages, RevTex, Modified Version

References in corpus (1)

• Fluctuation-dissipation relations in the non-equilibrium critical dynamics of Ising models

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