Covariant Loop Quantum Gravity: An Elementary Introduction to Quantum Gravity and Spinfoam Theory
Cambridge University Press, 5/14/2020
EAN 9781108810258, ISBN10: 110881025X
Paperback, 268 pages, 24.6 x 18.9 x 1.5 cm
Language: English
Originally published in English
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.
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.