Fermionic Functional Integrals and the Renormalization Group

ISBN-13: 9780821828786 / Angielski / Twarda / 2002

Joel Feldman; Horst Knorrer

Opis

A concise summary of one of the most significant developments in the theoretical analysis of quantum field theory. The renormalization group is the name given to a technique for analyzing the qualitative behavior of a class of physical systems by iterating a map on the vector space of interactions for the class. In a typical nonrigorous application of this technique, one assumes, based on one's physical intuition, that only a certain finite dimensional subspace (usually of dimension three or less) is important. The material in this book concerns a technique for justifying this approximation in a broad class of fermionic models used in condensed matter and high energy physics.