%0 Journal Article
%T Diffusion of interacting particles in discrete geometries
%A T. Becker
%A K. Nelissen
%A B. Cleuren
%A B. Partoens
%A C. Van den Broeck
%J Physics
%D 2013
%I arXiv
%R 10.1103/PhysRevLett.111.110601
%X We evaluate the self-diffusion and transport diffusion of interacting particles in a discrete geometry consisting of a linear chain of cavities, with interactions within a cavity described by a free-energy function. Exact analytical expressions are obtained in the absence of correlations, showing that the self-diffusion can exceed the transport diffusion if the free-energy function is concave. The effect of correlations is elucidated by comparison with numerical results. Quantitative agreement is obtained with recent experimental data for diffusion in a nanoporous zeolitic imidazolate framework material, ZIF-8.
%U http://arxiv.org/abs/1305.2095v2