par Barra De La Guarda, Felipe ;Gilbert, Thomas
Référence Physical Review Letters, 98, 13 130601
Publication Publié, 2007
Article révisé par les pairs
Résumé : The self-similar Lorentz billiard channel is a spatially extended deterministic dynamical system which consists of an infinite one-dimensional sequence of cells whose sizes increase monotonically according to their indices. This special geometry induces a nonequilibrium stationary state with particles flowing steadily from the small to the large scales. The corresponding invariant measure has fractal properties reflected by the phase-space contraction rate of the dynamics restricted to a single cell with appropriate boundary conditions. In the near-equilibrium limit, we find numerical agreement between this quantity and the entropy production rate as specified by thermodynamics. © 2007 The American Physical Society.