Breakdown of Diffusive Motion in an Interacting Lattice Gas
Physics and Astronomy
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.
Physica A: Statistical Mechanics and its Applications
Pandey, R. B.
(1992). Breakdown of Diffusive Motion in an Interacting Lattice Gas. Physica A: Statistical Mechanics and its Applications, 187(1-2), 77-86.
Available at: http://aquila.usm.edu/fac_pubs/6869