par Gilbert, Thomas ;Lefevere, Raphaël
Référence Physical Review Letters, 101, 20, page (200601)
Publication Publié, 2008
Article révisé par les pairs
Résumé : We study the transport properties of a large class of locally confined Hamiltonian systems, in which neighboring particles interact through hard-core elastic collisions. When these collisions become rare and the systems large, we derive a Boltzmann-like equation for the evolution of the probability densities. We solve this equation in the linear regime and compute the heat conductivity from a Green-Kubo formula. The validity of our approach is demonstrated by comparing our predictions with the results of numerical simulations performed on a new class of high-dimensional defocusing chaotic billiards. © 2008 The American Physical Society.

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