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Explosive particle production in non-commutative inflation

Published in Journal of High Energy Physics. 2013, vol. 01, no. 067
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.
Keywords CosmologzInflationNon-commutativity
arXiv: 1210.5373
Note v2: minor typos corrected, one reference added
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PERRIER, Hideki, DURRER, Ruth, RINALDI, Massimiliano. Explosive particle production in non-commutative inflation. In: Journal of High Energy Physics, 2013, vol. 01, n° 067. https://archive-ouverte.unige.ch/unige:25604

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Deposited on : 2013-01-16

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