Article Dans Une Revue Physical Review Letters Année : 1982

Classical Diffusion on a Random Chain

Bernard Derrida
Y. Pomeau
  • Fonction : Auteur

Résumé

A simple model of classical diffusion on a random chain is studied. The velocities to the right and to the left are calculated. When one changes continuously the probability distribution ρ of the hopping rates, a whole region is found where these two velocities vanish. In this region, the distance R covered by a particle during the time t behaves like R∼tx, where x depends continuously on ρ. The exponent x is calculated for a simple example.

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hal-03285934 , version 1 (19-07-2021)

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Bernard Derrida, Y. Pomeau. Classical Diffusion on a Random Chain. Physical Review Letters, 1982, 48 (9), pp.627-630. ⟨10.1103/PhysRevLett.48.627⟩. ⟨hal-03285934⟩

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