Quantum-gravity effects for excited states of inflationary perturbations
General Relativity and Quantum Cosmology
2019-05-08 v2 Cosmology and Nongalactic Astrophysics
High Energy Physics - Theory
Abstract
We generalize former findings regarding quantum-gravitational corrections arising from a canonical quantization of a perturbed FLRW universe during inflation by considering an initial state for the scalar and tensor perturbations that generalizes the adiabatic vacuum state and allows us to consider the scenario that the perturbation modes start their evolution in an excited state. Our result shows that the quantum-gravitationally corrected power spectra get modified by pre-factors including the excitation numbers.
Keywords
Cite
@article{arxiv.1903.01234,
title = {Quantum-gravity effects for excited states of inflationary perturbations},
author = {David Brizuela and Claus Kiefer and Manuel Kraemer and Salvador Robles-Pérez},
journal= {arXiv preprint arXiv:1903.01234},
year = {2019}
}
Comments
8 pages, clarifications and references added, published in Physical Review D