Concepts of Highly Excited Electronic Systems

Knowledge of the excitation characteristics of matter is decisive for the descriptions of a variety of dynamical processes, which are of significant technological interest. E.g. transport properties and the optical response are controlled by the excitation spectrum.This self-contained work is a coherent presentation of the quantum theory of correlated few-particle excitations in electronic systems. It begins with a compact resume of the quantum mechanics of single particle excitations. Methods are then presented for the treatment of few-particle excitations and scattering states in finite and extended systems. Particular emphasis is put on the Green's function technique, which offers a natural tool to unravel the relationship between the physics of small and large electronic systems. The book contains explicit expressions for the Coulomb Green's function of two charged particles and a generalization to few-body compounds. Green's function techniques are utilized as a systematic approach for the treatment of multi-particle excitations in extended systems.A complimentary volume presents an up-to-date selection of applications of the developed concepts and a comparison with available experiments.Contents: Introduction and basic concepts Two-particle Coulomb systems Resonant and non-resonant two-particle excitations Multi-particle excited states in finite electronic systems Excitations in extended electronic systemsBerakdar, Jamal is the author of 'Concepts of Highly Excited Electronic Systems', published 2003 under ISBN 9783527403356 and ISBN 3527403353.