Bounce from Inflation
Cosmology and Nongalactic Astrophysics
2020-08-25 v3 General Relativity and Quantum Cosmology
Abstract
We construct a class of viable bouncing models that are conformally related to cosmological inflation. There are three main difficulties in constructing such a model: (i) A stable (attractor) solution, (ii) A non-singular bounce, and (iii) to bypass the no-go theorem that states that simultaneously maintaining the observational bounds on the tensor-to-scalar ratio and the non-Gaussian scalar spectrum are not possible. We show that a non-minimal coupling of the scalar field helps to bypass these difficulties and provides a viable bouncing model with a naturally occurring reheating epoch briefly after the bouncing phase.
Cite
@article{arxiv.2003.02066,
title = {Bounce from Inflation},
author = {Debottam Nandi},
journal= {arXiv preprint arXiv:2003.02066},
year = {2020}
}
Comments
5 pages, 3 figures, accepted in Phys. Lett. B