The physics of quantum gravity

https://www.sciencedirect.com/science/article/pii/S1631070514000474

Abstract

Quantum gravity is still very mysterious and far from being well understood. In this text we review the motivations for the quantification of gravity, and some expected physical consequences. We discuss the remarkable relations between scattering processes in quantum gravity and in Yang–Mills theory, and the role of string theory as a unifying theory.


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