Abstract
We examined the diffusion of lattice gases, where double occupancy of sites is excluded, on three-dimensional percolation lattices at the percolation thresholdp c . The critical exponent for the root-mean-square displacement was determined to bek=0.183±0.010, which is similiar to the result of Roman for the problem of the “ant in the labyrinth.” Furthermore, we found a plateau value fork at intermediate times for systems with higher concentrations of lattice gas particles.
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Paetzold, O. Diffusion of lattice gases without double occupancy on three-dimensional percolation lattices. J Stat Phys 61, 495–500 (1990). https://doi.org/10.1007/BF01013977
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DOI: https://doi.org/10.1007/BF01013977