Statistical theory of point defect reactions in solids

Main conceptions and applications of the statistical theory of reactions in condensed phase are discussed. Various random walking models, boundary conditions, and fluctuation influence on reaction rates have been analysed. It has been shown that time evolution of the reacting-particle system should be adequately described by analytical methods of chain-equation solutions for distribution functions (the chain equations being broken at some approximations) and by direct computer modeling. Such an approach proves to be the most fruitful when studying the reactions in the systems with high particle concentrations and mean free path, for tunneling, energy transfer and other reactions of the type