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Non-equilibrium relaxation of an elastic string in random media

Alejandro B. Kolton·A. Rosso·Thierry Giamarchi
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Abstract

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, $U(L) \sim L^θ$.

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Alejandro B. Kolton, A. Rosso, Thierry Giamarchi. 2006-01-12. Non-equilibrium relaxation of an elastic string in random media. https://doi.org/10.1051/jp4%3A2005131046

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