Sluggish Kinetics in the Parking Lot Model

Details Sluggish Kinetics in the Parking Lot Model Sluggish Kinetics in the Parking Lot Model

1998-09-24

arxiv.org/abs/cond-mat/9809326v1

Physics

Condensed Matter

Statistical Mechanics

7 pages, 5 figures, submitted to J. Phys. A

Scientific paper

10.1088/0305-4470/32/16/008

We investigate, both analytically and by computer simulation, the kinetics of a microscopic model of hard rods adsorbing on a linear substrate. For a small, but finite desorption rate, the system reaches the equilibrium state very slowly, and the long-time kinetics display three successive regimes: an algebraic one where the density varies as $1/t$, a logarithmic one where the density varies as $1/ln(t)$, followed by a terminal exponential approach. A mean-field approach fails to predict the relaxation rate associated with the latter. We show that the correct answer can only be provided by using a systematic description based on a gap-distribution approach.

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