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Tracer diffusion in concentrated lattice gas models. Rectangular lattices with anisotropic jump rates |
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| Authors: | Henk van Beijeren Ryszard Kutner |
| Institution: | (1) Institut für Theoretische Physik A, Rheinisch-Westfälische Technische Hochschule Aachen, D-5100 Aachen, West Germany;(2) Present address: Instituut voor Theoretische Fysica, Rijksuniversiteit Utrecht, The Netherlands;(3) Institut für Festkörperforschung der Kernforschungsanlage Jülich, D-5170 Jülich, West Germany;(4) Institute of Experimental Physics, University of Warsaw, 00-681 Warsaw, Poland |
| Abstract: | An approximate theory is developed for tracer diffusion in rectangular lattice gas models with anisotropic jump rates to neighboring unoccupied sites in different directions. Comparison with Monte Carlo simulations on quadratic lattices with several ratios for the jump rates in orthogonal directions shows a satisfactory agreement in all cases investigated. |
| Keywords: | Tracer diffusion Monte Carlo simulations crossover behavior |
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