ISSN:
1572-9613
Keywords:
Lorentz model
;
Ehrenfest wind-tree model
;
lattice gas
;
diffusion
;
abnormal diffusion
;
bond percolation
;
polymer chain
Source:
Springer Online Journal Archives 1860-2000
Topics:
Physics
Notes:
Abstract Diffusive behavior in various Lorentz lattice gases, especially wind-tree-like models, is discussed. Comparisons between lattice and continuum models as well as deterministic and probabilistic models are made. In one deterministic model, where the scatterers behave like double-sided mirrors, a new kind of abnormal diffusion is found, viz., the mean square displacement is proportional to the time, but the probability density distribution function is non-Gaussian. The connections of this mirror model with the percolation problem and the statistics of polymer chains on a lattice are also discussed.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1007/BF01128181
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