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Breathers and thermal relaxation in Fermi-Pasta-Ulam arrays

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Breather stability and longevity in thermally relaxing nonlinear arrays depend sensitively on their interactions with other excitations. We review numerical results for the relaxation of breathers in Fermi¿Pasta¿Ulam arrays, with a specific focus on the different relaxation channels and their dependence on the interparticle interactions, dimensionality, initial condition, and system parameters

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Articles publicats en revistes (Ciència dels Materials i Química Física)

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Breathers and thermal relaxation in Fermi-Pasta-Ulam arrays