Reaction, Lévy flights, and quenched disorder

Ligang Chen, Michael W. Deem
2001 Physical review. E, Statistical physics, plasmas, fluids, and related interdisciplinary topics  
We consider the A + A --> emptyset reaction, where the transport of the particles is given by Levy flights in a quenched random potential. With a common literature model of the disorder, the random potential can only increase the rate of reaction. With a model of the disorder that obeys detailed balance, however, the rate of reaction initially increases and then decreases as a function of the disorder strength. The physical behavior obtained with this second model is in accord with that for
more » ... tive turbulent flow, indicating that Levy flight statistics can model aspects of turbulent fluid transport.
doi:10.1103/physreve.65.011109 pmid:11800679 fatcat:5rvlmr7oorbpjh7dzxoeptkdpe