The CMB bispectrum from bouncing cosmologies
Abstract
In this paper we compute the CMB bispectrum for bouncing models motivated by Loop Quantum Cosmology. Despite the fact that the primordial bispectrum of these models is decaying exponentially above a large pivot scale, we find that the cumulative signal-to-noise ratio of the bispectrum induced in the CMB from scales is larger than in all cases of interest and therefore can, in principle, be detected in the Planck data.
Cite
@article{arxiv.2108.06175,
title = {The CMB bispectrum from bouncing cosmologies},
author = {Paola C. M. Delgado and Ruth Durrer and Nelson Pinto-Neto},
journal= {arXiv preprint arXiv:2108.06175},
year = {2021}
}
Comments
15 pages, 8 figures. This is the Accepted Manuscript version of an article accepted for publication in Journal of Cosmology and Astroparticle Physics. Neither SISSA Medialab Srl nor IOP Publishing Ltd is responsible for any errors or omissions in this version of the manuscript or any version derived from it. The Version of Record is available online at the DOI link below