Breakdown of diffusive motion in an interacting lattice gas

Ras B. Pandey

Physica A: Statistical Mechanics and its Applications, 1992, vol. 187, issue 1, 77-86

Abstract: A Monte Carlo simulation is presented for the tracers' diffusion of an interacting lattice gas model as a function of temperature and concentration. The rms displacement shows a diffusive power-law behavior in the dilute regime, as in hard-core lattice gas. In three dimensions, the transport becomes anomalous at a higher concentration regime which depends on temperature. In two dimensions, the global transports cease to occur at intermediate concentrations leading to a trapping, and reappears as a metastable nondiffusive transport at higher concentrations.

Date: 1992
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Persistent link: https://EconPapers.repec.org/RePEc:eee:phsmap:v:187:y:1992:i:1:p:77-86

DOI: 10.1016/0378-4371(92)90410-R

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