Nonlinear Sciences – Pattern Formation and Solitons
Scientific paper
2003-06-17
In L V\'azquez, MP Zorzano, RS Mackay, editors. Localization and Energy Transfer in Nonlinear Systems: Proceedings of the Thir
Nonlinear Sciences
Pattern Formation and Solitons
4 pages, 2 figures, Proceedings of the Third Conference, San Lorenzo De El Escorial, Spain 17-21 June 2002
Scientific paper
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.
Archilla Juan F. R.
Cuevas Jaime
Palmero F.
Rica Romero Francisco
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