Detailed background dynamics and trans-planckian effects in loop quantum cosmology
Abstract
Cosmology appears as the most promising way to test and constrain quantum gravity theories. Loop quantum gravity is among the most advanced attempts to perform a non-perturbative quantization of general relativity. Its cosmological counterpart, loop quantum cosmology, has clear predictions both for the cosmological background and for the perturbations. In particular, the initial Big Bang singularity is replaced by a bounce due to quantum geometry effects. In this proceeding I will focus on new results obtained in loop quantum cosmology: i) the prediction of the duration of inflation as a function of all the unknown parameters of the model and ii) new primordial power spectra obtained with modified dispersion relations accounting for trans-planckian effects.
Cite
@article{arxiv.1808.06974,
title = {Detailed background dynamics and trans-planckian effects in loop quantum cosmology},
author = {Killian Martineau},
journal= {arXiv preprint arXiv:1808.06974},
year = {2023}
}
Comments
4 pages, 2 figures, Proceedings of the 15th Marcel Grossmann Meeting - MG15, July 1-7 2018, University of Rome "La Sapienza"