Abstract
Using the renormalization group method we investigate the nonequilibrium relaxation of the (Cardy-Ostlund) 2D random sine-Gordon model, which describes pinned arrays of lines. Its statics exhibit a marginal () glass phase for described by a line of fixed points. We obtain the universal scaling functions for two-time dynamical response and correlations near for various initial conditions, as well as the autocorrelation exponent. The fluctuation dissipation ratio is found to be nontrivial and continuously dependent on .
- Received 19 March 2004
DOI:https://doi.org/10.1103/PhysRevLett.93.217201
©2004 American Physical Society