Is the Big Rip unreachable?
General Relativity and Quantum Cosmology
2018-08-29 v3 Cosmology and Nongalactic Astrophysics
High Energy Physics - Phenomenology
High Energy Physics - Theory
Abstract
I investigate the repercussions of particle production when the Universe is dominated by a hypothetical phantom substance. I show that backreaction due to particle production prevents the density from shooting to infinity at a Big Rip, but instead forces it to stabilise at a large constant value. Afterwards there is a period of de-Sitter inflation. I speculate that this might lead to a cyclic Universe.
Cite
@article{arxiv.1807.01587,
title = {Is the Big Rip unreachable?},
author = {Konstantinos Dimopoulos},
journal= {arXiv preprint arXiv:1807.01587},
year = {2018}
}
Comments
9 pages, 2 figures. Published version