Driven depinning of strongly disordered media and anisotropic mean-field limits

Details Driven depinning of strongly disordered media and anisotropic mean-field limits Driven depinning of strongly disordered media and anisotropic mean-field limits

2003-02-14

arxiv.org/abs/cond-mat/0302275v1

Physical Review Letters 91, 107002 (2003) [4 pages]

Physics

Condensed Matter

Disordered Systems and Neural Networks

4 pages, 2 figures

Scientific paper

10.1103/PhysRevLett.91.107002

Extended systems driven through strong disorder are modeled generically using coarse-grained degrees of freedom that interact elastically in the directions parallel to the driving force and that slip along at least one of the directions transverse to the motion. A realization of such a model is a collection of elastic channels with transverse viscous couplings. In the infinite range limit this model has a tricritical point separating a region where the depinning is continuous, in the universality class of elastic depinning, from a region where depinning is hysteretic. Many of the collective transport models discussed in the literature are special cases of the generic model.

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