Internal mode mechanism for collective energy transport in extended systems

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Show simple item record Morales-Molina, Luis Quintero, Niurka R. Mertens, Franz G. 2012-08-29T08:39:39Z 2012-08-29T08:39:39Z 2003-12-05
dc.identifier.bibliographicCitation Physical Review Letters, vol. 91, n. 23, 5 dec. 2003. Pp. 1-4
dc.identifier.issn 0031-9007 (print version)
dc.identifier.issn 1079-7114 (online version)
dc.description.abstract We study directed energy transport in homogeneous nonlinear extended systems in the presence of homogeneous ac forces and dissipation. We show that the mechanism responsible for unidirectional motion of topological excitations is the coupling of their internal and translation degrees of freedom. Our results lead to a selection rule for the existence of such motion based on resonances that explain earlier symmetry analysis of this phenomenon. The direction of motion is found to depend both on the initial and the relative phases of the two harmonic drivings, even in the presence of noise.
dc.description.sponsorship This work has been supported by the Ministerio de Ciencia y Tecnología of Spain through Grants No. BFM2001-3878-C02 (N. R.Q.), No. BFM2000-0006, and No. BFM2003-07749-C05-01 (A. S.), by the Junta de Andalucı´a under Project No. FQM-0207, by DAAD (Germany) A0231253/Ref. 314, and by the International Research Training Group "Nonequilibrium Phenomena and Phase Transitions in Complex Systems."
dc.format.mimetype application/pdf
dc.language.iso eng
dc.publisher American Physical Society
dc.title Internal mode mechanism for collective energy transport in extended systems
dc.type article
dc.description.status Publicado
dc.subject.eciencia Matemáticas
dc.identifier.doi 10.1103/PhysRevLett.91.234102
dc.rights.accessRights openAccess
dc.type.version publishedVersion
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