Initially Separated A + B → 0 Reaction-Diffusion Systems with Arbitrary Initial Parameters
The phenomenon of diffusion is often accompanied by other physical processes. The interplay between them may lead to the situation in which the evolution of the system significantly differs from that expected when its dynamics is governed only by diffusion. An example of such a situation which has recently attracted a lot of interest is the so called A + B → 0 reaction-diffusion process in which particles of two different species, A and B, diffuse and, at the same time, may undergo a chemical reaction whose product is chemically inert. The applications of the theory of the A + B → 0 systems, however, are not restricted exclusively to chemistry. One might as well think of A’s and B’s as of Schottky’s and Frenkl’s point defects, adatoms in the second monolayer and vacant absorption sites in the first monolayer, electrons and holes, or magnetic monopoles and antimonopoles in the early Universe.
KeywordsReaction Zone Reaction Layer Reaction Front Magnetic Monopole Free Diffusion
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