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Breakdown of diffusive motion in an interacting lattice gas

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  • Pandey, Ras B.

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.

Suggested Citation

  • Pandey, Ras B., 1992. "Breakdown of diffusive motion in an interacting lattice gas," Physica A: Statistical Mechanics and its Applications, Elsevier, vol. 187(1), pages 77-86.
    • Handle: RePEc:eee:phsmap:v:187:y:1992:i:1:p:77-86
    DOI: 10.1016/0378-4371(92)90410-R
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