Imprints of Quantum Gravity in the Cosmic Microwave Background
High Energy Physics - Theory
2019-03-27 v1 General Relativity and Quantum Cosmology
Abstract
It has been shown that the spectrum of quantum gravity contains at least two new modes in addition to the massless graviton: a massive spin-0 and a massive spin-2. We calculate their power spectrum during inflation and we argue that they could leave an imprint in the cosmic microwave background should their masses be below the inflationary scale.
Cite
@article{arxiv.1903.01379,
title = {Imprints of Quantum Gravity in the Cosmic Microwave Background},
author = {Xavier Calmet and James Edholm and Iberê Kuntz},
journal= {arXiv preprint arXiv:1903.01379},
year = {2019}
}