Determination of the chemical diffusion coefficient by Monte Carlo simulation of the center-of-mass propagation |
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| Authors: | R Kutner W Bogusz |
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| Institution: | (1) Department of Physics, Warsaw University, Hoza 69, PL-00-681 Warsaw, Poland;(2) Present address: Department of Applied Physics, Tokyo Institute of Technology, O-ookayama 2-12-1, Meguro-ku, Tokyo 152, Japan |
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| Abstract: | The extendedZwerger method of determining thechemical diffusion coefficient, for lattice gasconventional diffusion in equilibrium andsuperdiffusion in stationary state, isverified by Monte Carlo simulation of thecentre-of-mass propogation. It has been found that the chemical diffusion coefficient for superdiffusion in one-dimensional, noninteracting lattice gas with the exclusion of double occupancy isconcentration independent like in conventional diffusion. Moreover, it has been proved that (chemical) superdiffusion ofuncorrelated particles isexactly described in this model by theBurgers nonlinear diffusion equation. |
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