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

A comprehensible introduction to the most fascinating research in theoretical physics: advanced quantum gravity. Ideal for researchers and graduate students.

Carlo Rovelli (Author), Francesca Vidotto (Author)

9781108810258, Cambridge University Press

Paperback / softback, published 14 May 2020

266 pages, 96 b/w illus. 20 exercises
24.7 x 19 x 1.4 cm, 0.4 kg

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.

Subject Areas: Relativity physics [PHR], Physics [PH], Cosmology & the universe [PGK], Astronomy, space & time [PG], Mathematics & science [P]