Reviews of previous volumes "...continues the tradition of this series on high-quality authoritative chapters in a wide-range of chemical physics topics." Journal of the American Chemical Society. The newest volume in the prestigious Advances in Chemical Physics Series, edited by Nobel Prize winner, Ilya Prigogine and renowned authority Stuart A. Rice, provides general information about a wide variety of topics in chemical physics. Experts present comprehensive analyses of subjects of interest, and encourage the expression of individual points of view. This approach to presenting an overview of a subject will both stimulate new research and serve as a personalized learning text for beginners in the field.