Perturbative Quantum Gravity Comes of Age

Abstract

I argue that cosmological data from the epoch of primordial inflation is catalyzing the maturation of quantum gravity from speculation into a hard science. I explain why quantum gravitational effects from primordial inflation are observable. I then review what has been done, both theoretically and observationally, and what the future holds. I also discuss what this tells us about quantum gravity.

64 pages, 6 figures, review article written for "One Hundred Years of General Relativity"

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Cited by in corpus (11)

• Constraining some Horndeski gravity theories
• Characters of different secular effects in various patches of de Sitter space
• Vacuum Fluctuations of a Scalar Field during Inflation: Quantum versus Stochastic Analysis
• Beyond-one-loop quantum gravity action yielding both inflation and late-time acceleration
• Equivalence of Adiabatic and DeWitt-Schwinger renormalization schemes
• Lagrangian constraints and renormalization of 4D gravity
• One loop graviton corrections to dynamical photons in de Sitter
• Constraining phantom braneworld model from cosmic structure sizes
• Covariant and infrared-free graviton two-point function in de Sitter spacetime II
• Vacuum states for gravitons field in de Sitter space
• Final Thoughts on the Power Spectra of Scalar Potential Models