Quantum Gravity and the Large Scale Anomaly
Alexander Y. Kamenshchik, Alessandro Tronconi, Giovanni Venturi
TL;DR
This paper investigates quantum gravitational effects on primordial perturbations using a Wheeler-De Witt approach, comparing theoretical predictions with observational data to constrain model parameters.
Contribution
It introduces a novel calculation of quantum gravitational corrections to scalar perturbations and compares these with Planck and BICEP2 data.
Findings
Quantum gravitational effects show distinctive features in the perturbation spectrum.
Constraints on free parameters of the theory are derived from observational data.
The approach provides a new way to test quantum gravity models against cosmological observations.
Abstract
The spectrum of primordial perturbations obtained by calculating the quantum gravitational corrections to the dynamics of scalar perturbations is compared with Planck 2013 and BICEP2/{\it Keck Array} public data. The quantum gravitational effects are calculated in the context of a Wheeler-De Witt approach and have quite distinctive features. We constrain the free parameters of the theory by comparison with observations.
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