Glassy Motion of Elastic Manifolds

Physics – Condensed Matter

Scientific paper

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4pages, revtex

Scientific paper

10.1103/PhysRevLett.77.1845

We discuss the low-temperature dynamics of an elastic manifold driven through a random medium. For driving forces well below the $T=0$ depinning force, the medium advances via thermally activated hops over the energy barriers separating favorable metastable states. We show that the distribution of waiting times for these hopping processes scales as a power-law. This power-law distribution naturally yields a nonlinear glassy response for the driven medium, $v\sim\exp(-{\rm const}\times F^{-\mu})$.

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