Scalar spectra of primordial perturbations in loop quantum cosmology
General Relativity and Quantum Cosmology
2018-10-10 v2 Cosmology and Nongalactic Astrophysics
High Energy Physics - Phenomenology
Abstract
This article is devoted to the study of scalar perturbations in loop quantum cosmology. It aims at clarifying the situation with respect to the way initial conditions are set and to the specific choice of an inflaton potential. Several monomial potentials are studied. Both the dressed metric and deformed algebra approaches are considered. We show that the calculation of the ultraviolet part of the spectrum, which is the physically relevant region for most background trajectories, is reliable, whereas the infrared and intermediate parts do depend on some specific choices that are made explicit.
Keywords
Cite
@article{arxiv.1807.06047,
title = {Scalar spectra of primordial perturbations in loop quantum cosmology},
author = {Aurélien Barrau and Pierre Jamet and Killian Martineau and Flora Moulin},
journal= {arXiv preprint arXiv:1807.06047},
year = {2018}
}