A first step towards the inflationary trans-planckian problem treatment in Loop Quantum Cosmology
General Relativity and Quantum Cosmology
2018-05-23 v2 Cosmology and Nongalactic Astrophysics
High Energy Physics - Phenomenology
Abstract
For most initial conditions, cosmologically relevant physical modes were trans-planckian at the bounce time, often by many magnitude orders. We improve the usual loop quantum cosmology calculation of the primordial power spectra -- in the inflationary framework -- by accounting for those trans-planckian effects through modified dispersion relations. This can induce drastic changes in the spectrum, making it either compatible or incompatible with observational data, depending on the details of the choices operated.
Cite
@article{arxiv.1709.03301,
title = {A first step towards the inflationary trans-planckian problem treatment in Loop Quantum Cosmology},
author = {Killian Martineau and Aurélien Barrau and Julien Grain},
journal= {arXiv preprint arXiv:1709.03301},
year = {2018}
}
Comments
11 pages, 10 figures