title: Window effect in a discretized model for diffusion of a chain in one dimension.
abstract: We introduce a model to study the diffusion of chains in microporous solids. The difficulties a chain has to escape from a pore where it is confined is found to strongly depend on the ratio between the chain length and the cage size. This dynamic effect implies a nonstandard behavior of the diffusion coefficient. We found a window effect that can be explained without using any energy argument.
authors.affiliation: Physics Department, School of Exact and Natural Sciences, University of Mar del Plata, Deán Funes 3350, 7600 Mar del Plata, Argentina.
authors.forename: G
authors.initials: G
authors.lastname: Terranova
authors.forename: C M
authors.initials: CM
authors.lastname: Aldao
authors.forename: H O
authors.initials: HO
authors.lastname: Mártin