Quantum Gravity

Hardcover | April 13, 2012

byClaus Kiefer

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The search for a quantum theory of the gravitational field is one of the great open problems in theoretical physics. This book presents a self-contained discussion of the concepts, methods and applications that can be expected in such a theory. The two main approaches to its construction - thedirect quantisation of Einstein's general theory of relativity and string theory - are covered. Whereas the first attempts to construct a viable theory for the gravitational field alone, string theory assumes that a quantum theory of gravity will be achieved only through a unification of all theinteractions. However, both employ the general method of quantization of constrained systems, which is described together with illustrative examples relevant for quantum gravity. There is a detailed presentation of the main approaches employed in quantum general relativity: path-integral quantization, the background-field method and canonical quantum gravity in the metric, connection and loop formulations. The discussion of string theory centres around itsquantum-gravitational aspects and the comparison with quantum general relativity. Physical applications discussed at length include the quantization of black holes, quantum cosmology, the indications of a discrete structure of spacetime, and the origin of irreversibility.This third edition contains new chapters or sections on quantum gravity phenomenology, Horava-Lifshitz quantum gravity, analogue gravity, the holographic principle, and affine quantum gravity. It will present updates on loop quantum cosmology, the LTB model, asymptotic safety, and various discreteapproaches. The third edition also contains pedagogical extensions throughout the text.This book will be of interest to researchers and students working in relativity and gravitation, cosmology, quantum field theory and related topics. It will also be of interest to mathematicians and philosophers of science.

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The search for a quantum theory of the gravitational field is one of the great open problems in theoretical physics. This book presents a self-contained discussion of the concepts, methods and applications that can be expected in such a theory. The two main approaches to its construction - thedirect quantisation of Einstein's general t...

Claus Kiefer has been a Professor at the Institute for Theoretical Physics at the University of Cologne in Germany since 2001.

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Format:HardcoverDimensions:432 pagesPublished:April 13, 2012Publisher:Oxford University PressLanguage:English

The following ISBNs are associated with this title:

ISBN - 10:0199585202

ISBN - 13:9780199585205

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Table of Contents

1. Why quantum gravity?2. Covariant approaches to quantum gravity3. Parametrized and relational systems4. Hamiltonian formulation of general relativity5. Quantum geometrodynamics6. Quantum gravity with connections and loops7. Quantization of black holes8. Quantum cosmology9. String theory10. Phenomenology, decoherence, and the arrow of time

Editorial Reviews

"Suitable for the expert who wants an overview of the state-of-the-art, as well as the novice looking for an introduction to one of the most spellbinding subjects in theoretical physics today." --Physik-Journal