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Effect of the introduction of Impurities on the stability properties of multibreathers at low coupling

Opened Access Effect of the introduction of Impurities on the stability properties of multibreathers at low coupling

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Autor: Cuevas-Maraver, Jesús
Archilla, Juan F. R.
Romero Romero, Francisco
Departamento: Universidad de Sevilla. Departamento de Física Aplicada I
Fecha: 2005
Publicado en: Nonlinearity,18 (2),769-790
Tipo de documento: Artículo
Resumen: Using a theorem dubbed the multibreather stability theorem (Archilla J F R et al 2003 Physica D 180 235) we have obtained the stability properties of multibreathers in systems of coupled oscillators with on-site potentials, and an inhomogeneity. Analytical results are obtained for two-site and three-site breathers, multibreathers, phonobreathers and dark breathers. The inhomogeneity is considered both at the on-site potential and at the coupling terms. All the results have been checked numerically with excellent agreement. The main conclusion is that the introduction of an impurity does not alter the stability properties.
Tamaño: 693.5Kb
Formato: PDF

URI: http://hdl.handle.net/11441/24784

DOI: 10.1088/0951-7715/18/2/016

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