Consistent Cosmic Microwave Background Spectra from Quantum Depletion
General Relativity and Quantum Cosmology
2015-09-16 v2 Cosmology and Nongalactic Astrophysics
High Energy Physics - Theory
Abstract
Following a new quantum cosmological model proposed by Dvali and Gomez, we quantitatively investigate possible modifications to the Hubble parameter and following corrections to the cosmic microwave background spectrum. In this model, scalar and tensor perturbations are generated by the quantum depletion of the background inflaton and graviton condensate respectively. We show how the inflaton mass affects the power spectra and the tensor-to-scalar ratio. Masses approaching the Planck scale would lead to strong deviations, while standard spectra are recovered for an inflaton mass much smaller than the Planck mass.
Cite
@article{arxiv.1502.04703,
title = {Consistent Cosmic Microwave Background Spectra from Quantum Depletion},
author = {Roberto Casadio and Florian Kuhnel and Alessio Orlandi},
journal= {arXiv preprint arXiv:1502.04703},
year = {2015}
}
Comments
23 pages, 9 figures; revised version to match published version