Effective Hamiltonian for traveling discrete breathers in the FPU chain

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dc.creatorKastner, Michael
dc.creatorSepulchre, Jacques-Alexandre
dc.date2003-10-19
dc.date2005-05-17
dc.date.accessioned2026-07-07T05:35:01Z
dc.date.available2026-07-07T05:35:01Z
dc.descriptionFor the Fermi-Pasta-Ulam chain, an effective Hamiltonian is constructed, describing the motion of approximate, weakly localized discrete breathers traveling along the chain. The velocity of these moving and localized vibrations can be estimated analytically as the group velocity of the corresponding wave packet. The Peierls-Nabarro barrier is estimated for strongly localized discrete breathers.
dc.description15 pages, 4 figures
dc.identifierhttps://arxiv.org/abs/nlin/0310027
dc.identifierhttp://arxiv.org/abs/nlin/0310027
dc.identifierDiscrete and Continuous Dynamical Systems B 5, 719-734 (2005)
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/80582
dc.subjectPattern Formation and Solitons
dc.subjectCondensed Matter
dc.titleEffective Hamiltonian for traveling discrete breathers in the FPU chain
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