Relativistic Many-Body Theory E-Book

Ingvar Lindgren

• Herausgeber: Springer New York
• Kategorie: Wissenschaft und neue Technologien
• Serie: Springer Series on Atomic, Optical, and Plasma Physics
• Sprache: Englisch

Veröffentlichungsjahr: 2011

Beschreibung

This book gives a comprehensive account of relativistic many-body perturbation theory, based upon field theory. After some introductory chapters about time-independent and time dependent many-body perturbation theory (MBPT), the standard techniques of S-matrix and Green’s functions are reviewed. Next, the newly introduced covariant-evolution-operator method is described, which can be used, like the S-matrix method, for calculations in quantum electrodynamics (QED). Unlike the S-matrix method, this has a structure that is similar to that of MBPT and therefore can serve as basis for a unified theory. Such an approach is developed in the final chapters, and its equivalence to the Bethe-Salpeter equation is demonstrated. Possible applications are discussed and numerical illustrations given.