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Energy Relaxation in Fermi-Pasta-Ulam Arrays

R. Reigada·A. Sarmiento·Katja Lindenberg
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Abstract

The dynamics of energy relaxation in thermalized one- and two-dimensional arrays with nonlinear interactions depend in detail on the interactions and, in some cases, on dimensionality. We describe and explain these differences for arrays of the Fermi-Pasta-Ulam type. In particular, we focus on the roles of harmonic contributions to the interactions and of breathers in the relaxation process.

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R. Reigada, A. Sarmiento, Katja Lindenberg. 2001-09-20. Energy Relaxation in Fermi-Pasta-Ulam Arrays. https://doi.org/10.1016/s0378-4371(01)00573-8

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