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arXiv · 1210.5373

Explosive particle production in non-commutative inflation

Hideki Perrier·Ruth Durrer·Massimiliano Rinaldi
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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.

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Hideki Perrier, Ruth Durrer, Massimiliano Rinaldi. 2012-12-03. Explosive particle production in non-commutative inflation. https://doi.org/10.1007/jhep01(2013)067

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