Ponencia
Interaction of moving breathers with an impurity
Autor/es | Cuevas-Maraver, Jesús
Palmero Acebedo, Faustino Archilla, Juan F. R. Romero Romero, Francisco |
Departamento | Universidad de Sevilla. Departamento de Física Aplicada I Universidad de Sevilla. Departamento de Física Atómica, Molecular y Nuclear |
Fecha de publicación | 2003 |
Fecha de depósito | 2015-05-28 |
Publicado en |
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ISBN/ISSN | 978-981-238-296-2 978-981-4486-51-4 |
Resumen | We analyze the influence of an impurity in the evolution of moving discrete
breathers in a Klein–Gordon chain with non-weak nonlinearity. Three different
behaviours can be observed when moving breathers interact with the ... We analyze the influence of an impurity in the evolution of moving discrete breathers in a Klein–Gordon chain with non-weak nonlinearity. Three different behaviours can be observed when moving breathers interact with the impurity: they pass through the impurity continuing their direction of movement; they are reflected by the impurity; they are trapped by the impurity, giving rise to chaotic breathers. Resonance with a breather centred at the impurity site is conjectured to be a necessary condition for the appearance of the trapping phenomenon. |
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