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Название: Microscopic Chaos and Reaction-Diffusion Processes in the Periodic Lorentz Gas
Авторы: Claus I., Gaspard P.
Journal of Statistical Physics, Vol. 101, Nos. 12, 2000. p. 161-186.
We apply the hypothesis of microscopic chaos to diffusion-controlled reaction which we study in a reactive periodic Lorentz gas. The relaxation rate of the reactive eigenmodes is obtained as eigenvalue of the Frobenius-Perron operator, which determines the reaction rate. The cumulative functions of the eigenstates of the Frobenius-Perron operator are shown to be generalizations of Lebesgue's singular continuous functions. For small enough densities of catalysts, the reaction is controlled by the diffusion. A random-walk model of this diffusion-controlled reaction process is presented, which is used to study the dependence of the reaction rate on the density of catalysts.