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dc.contributor.authorSendiña-Nadal, I.
dc.contributor.authorPérez Muñuzuri, Alberto
dc.contributor.authorVives, D.
dc.contributor.authorPérez Muñuzuri, Vicente
dc.contributor.authorCasademunt, Jaume
dc.contributor.authorRamírez de la Piscina Millán, Laureano
dc.contributor.authorSancho, Jose Maria
dc.contributor.authorSagués Mestre, Francesc
dc.contributor.otherUniversitat Politècnica de Catalunya. Departament de Física Aplicada
dc.date.accessioned2012-11-20T13:06:17Z
dc.date.available2012-11-20T13:06:17Z
dc.date.created1998-06-30
dc.date.issued1998-06-30
dc.identifier.citationSendina-Nadal, I.; Pérez-Muñuzuri, A.P.; Vives, D.; Pérez-Muñuzuri, V.; Casademunt, J.; Ramírez-Piscina, L.; Sancho, J.M.; Sagués, F. "Wave propagation in a medium with disordered excitability". Physical Review Letters, 1998, vol. 80, núm. 24, p.5437-5440. ISSN:0031-9007
dc.identifier.issn0031-9007
dc.identifier.urihttp://hdl.handle.net/2117/16977
dc.description.abstractThe effect of quenched disorder on the propagation of autowaves in excitable media is studied both experimentally and numerically in relation to the light-sensitive Belousov-Zhabotinsky reaction. The spatial disorder is introduced through a random distribution with two different levels of transmittance. In one dimension the (time-averaged) wave speed is smaller than the corresponding to a homogeneous medium with the mean excitability. Contrarily, in two dimensions the velocity increases due to the roughening of the front. Results are interpreted using kinematic and scaling arguments. In particular, for d ­ 2 we verify a theoretical prediction of a power-law dependence for the relative change of the propagation speed on the disorder amplitude.
dc.format.extent5437-5440
dc.language.isoeng
dc.publisherAmerican Physical Society
dc.subjectÀrees temàtiques de la UPC::Física::Mecànica quàntica
dc.subject.lcshWaves
dc.subject.otherChemical waves
dc.subject.otherDisorder
dc.subject.otherExcitable media
dc.subject.otherBelousov-Zhabotinsky reaction
dc.titleWave propagation in a medium with disordered excitability
dc.typeArticle
dc.subject.lemacOnes
dc.contributor.groupUniversitat Politècnica de Catalunya. NOLIN - Física No-Lineal i Sistemes Fora de l'Equilibri
dc.description.peerreviewedPeer Reviewed
dc.subject.amsOnes
dc.relation.publisherversionhttp://prl.aps.org/pdf/PRL/v80/i24/p5437_1
dc.rights.accessOpen Access
dc.description.versionPreprint
local.personalitzacitaciotrue


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