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Monte Carlo Study of A+A+A→0 and A+2B→0 Reactions

Published online by Cambridge University Press:  10 February 2011

Andrew Yen
Affiliation:
Department of Chemistry, University of Michigan, Ann Arbor, MI 48109–1055
Raoul Kopelman
Affiliation:
Department of Chemistry, University of Michigan, Ann Arbor, MI 48109–1055
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Abstract

The diffusion-limited annihilation reactions A+A→products and A+B→products havebeen subject to theoretical, numerical, and experimental study over the past decade. “Anomalous” behaviors have been reported for both reactions, but with different upper critical dimensions (d=2 and d=4 respectively). The critical dimensions and the scaling of the exponents for the generalized reaction nA+mB→products depends on n and m. We present Monte Carlo simulations for two different types of third-order reactions, A+A+A→0 and A+2B→0, on both one and two dimensional lattices. Our numerical results show that for the two-dimensional case the behavior of the reaction follows mean-field theory while in one dimension the result is“anomalous”. Our numerical results are in good agreement with theory based on microscopic arguments and scaling analysis.

Type
Research Article
Copyright
Copyright © Materials Research Society 1997

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References

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