Non-equilibrium relaxation of an elastic string in random media

Details Non-equilibrium relaxation of an elastic string in random media Non-equilibrium relaxation of an elastic string in random media

2006-01-12

arxiv.org/abs/cond-mat/0601266v1

J. de Physique IV, Proceedings, 131, 189 (2005). S. Brazovskii, P. Monceau and N. Kirova Eds

Physics

Condensed Matter

Disordered Systems and Neural Networks

2 pages, 1 figure, Proceedings of ECRYS-2005 International Workshop on Electronic Crystal

Scientific paper

10.1051/jp4:2005131046

We study the relaxation of an elastic string in a two dimensional pinning landscape using Langevin dynamics simulations. The relaxation of a line, initially flat, is characterized by a growing length, $L(t)$, separating the equilibrated short length scales from the flat long distance geometry that keep memory of the initial condition. We find that, in the long time limit, $L(t)$ has a non--algebraic growth, consistent with thermally activated jumps over barriers with power law scaling, $U(L) \sim L^\theta$.

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