Covariant Techniques in Quantum Field Theory
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Beschreibung
The purpose of this book is to illustrate some of the most important techniques which are helpful in combinatorial problems when computing quantum effects in covariant theories, like general relativity. In fact, most of the techniques find application also in broader contexts, such as low energy effective (chiral) Lagrangians or even in specific problems in condensed matter. Some of the topics covered are: the background field approach and the heat kernel ideas. The arguments are explained in some detail and the presentation is meant for young researchers and advanced students who are starting working in the field. As prerequisite the reader should have attended a course in quantum field theory including Feynman’s path integral. In the Appendix a nontrivial calculation of one-loop divergences in Einstein-Hilbert gravity is explained step-by-step.
Gives a careful exposition of the problems in quantum gravity Provides a useful set of techniques to make QFT computations Clarifies results with detailed calculations
Autor*in
Enrique Álvarez
Themen in »Covariant Techniques in Quantum Field Theory«
Quantum Field Theory in Curved Spacetime One Loop Computation Heat Kernel Approach Zeta Function Regularization Schwinger-de Witt Coefficients Quantum Field Theory Computations