title: Breathers and thermal relaxation in Fermi-Pasta-Ulam arrays.
abstract: 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.
authors.affiliation: Departament de Quimica Fisica, Universitat de Barcelona, Avda. Diagonal 647, 08028 Barcelona, Spain.
authors.forename: Ramon
authors.initials: R
authors.lastname: Reigada
authors.forename: Antonio
authors.initials: A
authors.lastname: Sarmiento
authors.forename: Katja
authors.initials: K
authors.lastname: Lindenberg