Critical exponents of the driven elastic string in a disordered medium
نویسندگان
چکیده
منابع مشابه
Elastic string in a random medium.
We consider a one-dimensional elastic string as a set of massless beads interacting through springs characterized by anisotropic elastic constants. The string, driven by an external force, moves in a medium with quenched disorder. We find that longitudinal fluctuations lead to nonlinear behavior in the equation of motion that is kinematically generated by the motion of the string. The strength ...
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Driven Interface Depinning in a Disordered Medium
The dynamics of a driven interface in a medium with random pinning forces is analyzed. The interface undergoes a depinning transition where the order parameter is the interface velocity v, which increases as v ∼ (F − Fc) for driving forces F close to its threshold value Fc. We consider a Langevin-type equation which is expected to be valid close to the depinning transition of an interface in a ...
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ژورنال
عنوان ژورنال: Physical Review E
سال: 2005
ISSN: 1539-3755,1550-2376
DOI: 10.1103/physreve.71.061601