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The Mirrors Model : Macroscopic Diffusion Without Noise or Chaos

Abstract : We consider a discrete version of the mirrors model in a finite d-dimensional domain and connected to particles reservoirs at fixed chemical potentials. The dynamics is purely deterministic and non-ergodic. We study the macroscopic current of particles in the stationary regime. We show first that when the size of the system goes to infinity, the behaviour of the stationary current of particles is governed by the proportion of orbits crossing the system. Using this approach, we show that Fick's law relating the stationary macroscopic current of particles to the concentration difference holds in three dimensions and above. The negative correlations between crossing orbits play a key role in the argument.
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Contributor : Raphael Lefevere <>
Submitted on : Monday, June 22, 2015 - 7:18:14 PM
Last modification on : Friday, March 27, 2020 - 3:56:40 AM
Document(s) archivé(s) le : Tuesday, September 15, 2015 - 8:52:32 PM


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  • HAL Id : hal-01166482, version 1
  • ARXIV : 1506.04727


Yann Chiffaudel, Raphaël Lefevere. The Mirrors Model : Macroscopic Diffusion Without Noise or Chaos. 2015. ⟨hal-01166482⟩



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