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Título:
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Effects of disorder on the wave front depinning transition in spatially discrete systems
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Autores:
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Carpio, Ana ;
Bonilla, L.L. ;
Luzón, Ana
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Tipo de documento:
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texto impreso
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Editorial:
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American Physical Society, 2002
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Dimensiones:
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application/pdf
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Nota general:
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info:eu-repo/semantics/openAccess
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Idiomas:
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Palabras clave:
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Estado = Publicado
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Materia = Ciencias: Física: Física matemática
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Tipo = Artículo
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Resumen:
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Pinning and depinning of wave fronts are ubiquitous features of spatially discrete systems describing a host of phenomena in physics, biology, etc. A large class of discrete systems is described by overdamped chains of nonlinear oscillators with nearest- neighbor coupling and subject to random external forces. The presence of weak randomness shrinks the pinning interval and it changes the critical exponent of the wave front depinning transition from 1/2 to 3/2. This effect is derived by means of a recent asymptotic theory of the depinning transition, extended to discrete drift-diffusion models of transport in semiconductor superlattices and is confirmed by numerical calculations.
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En línea:
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https://eprints.ucm.es/id/eprint/15051/1/36.pdf
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