Applying a unified quantum approach, contributors offer fresh insights into the theoretical developments in the excitation energy transfer processes in condensed matter. This comprehensive volume examines Frenkel and Wannier excitonic processes; rates of excitonic processes; theory of laser sputter and polymer ablation; and polarons, excitonic polarons and self-trapping.

1 Theory of Excitons.- 2 Exciton-Phonon Interactions.- 3 Polarons and Excitonic Polarons.- 4 Self-Trapping.- 5 Exciton Dynamics.- 6 Exciton-Related Phenomena.- A.1. Derivation of ? Defined in Equation (3.14).- A.2. Derivation of Equation (3.18).- A.3. Derivation of Equation (4.40).