A Model of Heat Conduction |
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Authors: | P Collet and J -P Eckmann |
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Institution: | (1) Centre de Physique Théorique, CNRS UMR 7644, Ecole Polytechnique, F-91128 Palaiseau Cedex, France;(2) Département de Physique Théorique et Section de Mathématiques, Université de Genève, CH-1211 Genève 4, Switzerland |
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Abstract: | In this paper, we first define a deterministic particle model for heat conduction. It consists of a chain of N identical subsystems, each of which contains a scatterer and with particles moving among these scatterers. Based on this
model, we then derive heuristically, in the limit of N → ∞ and decreasing scattering cross-section, a Boltzmann equation for this limiting system. This derivation is obtained by
a closure argument based on memory loss between collisions. We then prove that the Boltzmann equation has, for stochastic
driving forces at the boundary, close to Maxwellians, a unique non-equilibrium steady state. |
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