Physics – Condensed Matter – Statistical Mechanics
Scientific paper
2001-05-03
Physics
Condensed Matter
Statistical Mechanics
14 pages of text in LaTeX, 7 figures in Postscript
Scientific paper
10.1103/PhysRevE.64.041101
We study the behavior of a point particle incident from the left on a slab of a randomly diluted triangular array of circular scatterers. Various scattering properties, such as the reflection and transmission probabilities and the scattering time are studied as a function of thickness and dilution. We show that a diffusion model satisfactorily describes the mentioned scattering properties. We also show how some of these quantities can be evaluated exactly and their agreement with numerical experiments. Our results exhibit the dependence of these scattering data on the mean free path. This dependence again shows excellent agreement with the predictions of a Brownian motion model.
Larralde Hernán
Leyvraz Francois
Martinez-Mekler Gustavo
Rechtman Raul
Ruffo Stefano
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