Weak Disorder: Anomalous Transport and Diffusion Are Normal Yet Again
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10.1103/PhysRevLett.106.090602
Inclou dades d'ús des de 2022
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hdl:2117/12324
Tipus de documentArticle
Data publicació2011-03
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Abstract
We carry out a detailed study of the motion of particles driven by a constant external force over a
landscape consisting of a periodic potential corrugated by a small amount of spatial disorder. We observe
anomalous behavior in the form of subdiffusion and superdiffusion and even subtransport over very long
time scales. Recent studies of transport over slightly random landscapes have focused only on parameters
leading to normal behavior, and while enhanced diffusion has been identified when the external force
approaches the critical value associated with the transition from locked to running solutions, the regime of
anomalous behavior had not been recognized. We provide a qualitative explanation for the origin of these
anomalies, and make connections with a continuous time random walk approach
CitacióKhoury, M. [et al.]. Weak Disorder: Anomalous Transport and Diffusion Are Normal Yet Again. "Physical review letters", Març 2011, vol. 106, núm. 9, p. 1-4.
ISSN0031-9007
Versió de l'editorhttp://prl.aps.org/abstract/PRL/v106/i9/e090602
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