Stochastic Ballistic Annihilation and Coalescence
arXiv:cond-mat/0005072 · doi:10.1103/PhysRevLett.85.3750
Abstract
We study a class of stochastic ballistic annihilation and coalescence models with a binary velocity distribution in one dimension. We obtain an exact solution for the density which reveals a universal phase diagram for the asymptotic density decay. By universal we mean that all models in the class are described by a single phase diagram spanned by two reduced parameters. The phase diagram reveals four regimes, two of which contain the previously studied cases of ballistic annihilation. The two new phases are a direct consequence of the stochasticity. The solution is obtained through a matrix product approach and builds on properties of a q-deformed harmonic oscillator algebra.
4 pages RevTeX, 3 figures; revised version with some corrections, additional discussion and in RevTeX format
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Cited by in corpus (16)
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