Explosive particle production in non-commutative inflation
General Relativity and Quantum Cosmology
2013-01-14 v2 Cosmology and Nongalactic Astrophysics
High Energy Physics - Theory
Abstract
We consider a model of inflation which has recently been proposed in the literature and where inflation is induced by corrections to the energy density coming from the non-commutativity of spacetime. We show that the very rapid inflationary expansion typical of this model is responsible for a burst of particle production which ends inflation and leads to a radiation-dominated phase. We analytically estimate the energy density of these particles and we confront the results with more precise numerical calculations. We estimate the number of inflationary e-folds before the back-reaction of the radiation energy density overcomes the non-commutative effects and terminate inflation naturally.
Cite
@article{arxiv.1210.5373,
title = {Explosive particle production in non-commutative inflation},
author = {Hideki Perrier and Ruth Durrer and Massimiliano Rinaldi},
journal= {arXiv preprint arXiv:1210.5373},
year = {2013}
}
Comments
v2: minor typos corrected, one reference added