Abstract
We use a Boolean cellular automaton model to describe the diffusion-limited dynamics of the irreversible reaction A+A→A+S on a 1D lattice. We derive a set of equations for the dynamics of the empty interval probabilities from which explicit expressions for the particle concentration and the two-point correlation can be obtained. It is shown that the long-time dynamics is in agreement with the off-lattice solution. The early-time behavior, however, predicts a slower decay of the concentration.
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Abad, E., Frisch, H.L. & Nicolis, G. One-Dimensional Lattice Dynamics of the Diffusion-Limited Reaction A+A→A+S: Transient Behavior. Journal of Statistical Physics 99, 1397–1407 (2000). https://doi.org/10.1023/A:1018649108442
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DOI: https://doi.org/10.1023/A:1018649108442