Confinement of discrete breathers in inhomogeneously profiled nonlinear chains

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Pàgina inicial del RECERCAT > Universitat de Barcelona > Física Quàntica i Astrofísica > Articles publicats en revistes (Física Quàntica i Astrofísica) > Visualitza document

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dc.contributor	Universitat de Barcelona
dc.contributor.author	Bena, Ioana
dc.contributor.author	Saxena, A. (Avadh)
dc.contributor.author	Tsironis, G. T.
dc.contributor.author	Ibañes Miguez, Marta
dc.contributor.author	Sancho, José M.
dc.date	2011-07-07T12:51:32Z
dc.date	2011-07-07T12:51:32Z
dc.date	2003
dc.identifier.citation	1539-3755
dc.identifier.citation	508230
dc.identifier.uri	http://hdl.handle.net/2445/18733
dc.format	4 p.
dc.format	application/pdf
dc.language.iso	eng
dc.publisher	The American Physical Society
dc.relation	Reproducció del document publicat a: http://dx.doi.org/10.1103/PhysRevE.67.037601
dc.relation	Physical Review E, 2003, vol. 67, núm. 3p. 037601(1)-037601(4)
dc.relation	http://dx.doi.org/10.1103/PhysRevE.67.037601
dc.rights	(c) The American Physical Society, 2003
dc.rights	info:eu-repo/semantics/openAccess
dc.subject	Física estadística
dc.subject	Termodinàmica
dc.subject	Sistemes dinàmics diferenciables
dc.subject	Dinàmica reticular
dc.subject	Statistical physics
dc.subject	Thermodynamics
dc.subject	Differentiable dynamical systems
dc.subject	Thermodynamics
dc.subject	Lattice dynamics
dc.title	Confinement of discrete breathers in inhomogeneously profiled nonlinear chains
dc.type	info:eu-repo/semantics/article
dc.type	info:eu-repo/semantics/publishedVersion
dc.description.abstract	We investigate numerically the scattering of a moving discrete breather on a pair of junctions in a Fermi-Pasta-Ulam chain. These junctions delimit an extended region with different masses of the particles. We consider (i) a rectangular trap, (ii) a wedge shaped trap, and (iii) a smoothly varying convex or concave mass profile. All three cases lead to DB confinement, with the ease of trapping depending on the profile of the trap. We also study the collision and trapping of two DBs within the profile as a function of trap width, shape, and approach time at the two junctions. The latter controls whether one or both DBs are trapped.

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