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dc.contributor.authorLacasta Palacio, Ana María
dc.contributor.authorSancho, Jose Maria
dc.contributor.authorSokolov, Igor M.
dc.contributor.authorLindenberg, K.
dc.contributor.otherUniversitat Politècnica de Catalunya. Departament de Física Aplicada
dc.date.accessioned2009-01-21T09:15:17Z
dc.date.available2009-01-21T09:15:17Z
dc.date.created2004
dc.date.issued2004-11-15
dc.identifier.citationLacasta, A.M. et al. From subdiffusion to superdiffusion of particles on solid surfaces. "Physical Review E". vol. 70, núm. 5, p. 10
dc.identifier.issn1063-651X
dc.identifier.urihttp://hdl.handle.net/2117/2514
dc.description.abstractWe present a numerical and partially analytical study of classical particles obeying a Langevin equation that describes diffusion on a surface modeled by a two dimensional potential. The potential may be either periodic or random. Depending on the potential and the damping, we observe superdiffusion, large-step diffusion, diffusion, and subdiffusion. Superdiffusive behavior is associated with low damping and is in most cases transient, albeit often long. Subdiffusive behavior is associated with highly damped particles in random potentials. In some cases subdiffusive behavior persists over our entire simulation and may be characterized as metastable. In any case, we stress that this rich variety of behaviors emerges naturally from an ordinary Langevin equation for a system described by ordinary canonical Maxwell-Boltzmann statistics.
dc.format.extent12 p.
dc.language.isoeng
dc.publisherAmerican Physical Society
dc.subjectÀrees temàtiques de la UPC::Matemàtiques i estadística::Anàlisi numèrica::Mètodes numèrics
dc.subject.lcshDiffusion
dc.subject.lcshLangevin equations
dc.subject.lcshSurfaces (Physics)
dc.subject.lcshNonlinear systems
dc.subject.otherNonlinear dynamics
dc.subject.otherDiffusion on surfaces
dc.subject.otherSuperdiffusion
dc.subject.otherRandom potentials
dc.titleFrom subdiffusion to superdiffusion of particles on solid surfaces
dc.typeArticle
dc.subject.lemacSistemes no lineals
dc.subject.lemacDifusió
dc.subject.lemacSuperfícies (Física)
dc.contributor.groupUniversitat Politècnica de Catalunya. NOLIN - Física No-Lineal i Sistemes Fora de l'Equilibri
dc.identifier.doi10.1103/PhysRevE.70.051104
dc.description.peerreviewedPeer Reviewed
dc.relation.publisherversionhttp://link.aps.org/doi/10.1103/PhysRevE.70.051104
dc.rights.accessOpen Access


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