Quantum decoherence of the homogeneous modes during inflation

2021/12/13 by Oleg O. Novikov, Novikov, Oleg O., Arina M. Shtennikova +1
Physics and Astronomy · #Cosmology and Gravitation Theories #Black Holes and Theoretical Physics #Noncommutative and Quantum Gravity Theories

paper · pdf · doi:10.48550/arxiv.2112.06894

Abstract

In this short note we consider the decoherence of the minisuperspace background degrees of freedom due to the long wavelength scalar and tensor perturbations becoming unobservable within the Born-Oppenheimer approach to the quantum gravity. We apply this to the power law inflation model.

Related

• Quantum decoherence of primordial perturbations through nonlinear scaler-tensor interaction
• The first data-driven bounds on the quantum decoherence of inflationary gravitational waves
• Quantum signatures and decoherence during inflation from deep subhorizon perturbations
• Observational constraints on inflationary decoherence with polynomial attractor model
• Decoherence of Vacuum Fluctuations in Cosmology