The Quantum Classical Theory

Over a period of fifty years the quantum-classical or semi-classical theories have been among the most popular for calculations of rates and cross sections for many dynamical processes: energy transfer chemical reactions photodissociation surface dynamics reactions in clusters and solutions etc. These processes are important in the simulation of kinetics of processes in plasma chemistry chemical reactors chemical or gas lasers atmospheric and interstellar chemistry as well as various industrial processes. This book gives an overview of quantum-classical methods that are currently used for a theoretical description of these molecular processes. It gives the theoretical background for the derivation of the theories from first principles. Enough details are provided to allow numerical implementation of the methods. The book gives the necessary background for understanding the approximations behind the methods and the working schemes for treating energy transfer processes from diatomic to polyatomic molecules reactions at surfaces non-adiabatic processes and chemical reactions.