Covariant Loop Quantum Gravity: An Elementary Introduction to Quantum Gravity and Spinfoam Theory

by Carlo Rovelli, Francesca Vidotto

Overview

Quantum gravity is among the most fascinating problems in physics. It modifies our understanding of time, space and matter. The recent development of the loop approach has allowed us to explore domains ranging from black hole thermodynamics to the early Universe. This book provides readers with a simple introduction to loop quantum gravity, centred on its covariant approach. It focuses on the physical and conceptual aspects of the problem and includes the background material needed to enter this lively domain of research, making it ideal for researchers and graduate students. Topics covered include quanta of space; classical and quantum physics without time; tetrad formalism; Holst action; lattice QCD; Regge calculus; ADM and Ashtekar variables; Ponzano-Regge and Turaev-Viro amplitudes; kinematics and dynamics of 4D Lorentzian quantum gravity; spectrum of area and volume; coherent states; classical limit; matter couplings; graviton propagator; spinfoam cosmology and black hole thermodynamics.

Product Details

ISBN-13:	9781108810258
Publisher:	Cambridge University Press
Publication date:	05/14/2020
Pages:	266
Product dimensions:	7.30(w) x 9.50(h) x 0.60(d)

About the Author

Carlo Rovelli is Professor of Physics at Université d'Aix-Marseille, where he directs the gravity research group. He is one of the founders of loop quantum gravity theory.

Francesca Vidotto works at Radboud Universiteit Nijmegen and initiated the spinfoam approach to cosmology.

Table of Contents

Preface; Part I. Foundations: 1. Spacetime as a quantum object; 2. Physics without time; 3. Gravity; 4. Classical discretization; Part II. The 3D Theory: 5. 3D Euclidean theory; 6. Bubbles and cosmological constant; Part III. The Real World: 7. The real world: 4D Lorentzian theory; 8. Classical limit; 9. Matter; Part IV. Physical Applications: 10. Black holes; 11. Cosmology; 12. Scattering; 13. Final remarks; References; Index.