Perturbative Quantum Gravity Comes of Age
R. P. Woodard (University of Florida)
TL;DR
Cosmological data from primordial inflation is advancing quantum gravity into a testable science, with observable effects and ongoing theoretical and observational progress.
Contribution
The paper reviews how primordial inflation data is enabling the empirical study of quantum gravity, marking a significant step forward in the field.
Findings
Quantum gravitational effects are observable in cosmological data.
Recent theoretical and observational work supports the maturation of quantum gravity.
Future observations will further test quantum gravity theories.
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.
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