TY - JOUR
T1 - Explosive particle production in non-commutative inflation
AU - Perrier, Hideki
AU - Durrer, Ruth
AU - Rinaldi, Massimiliano
PY - 2013/1/21
Y1 - 2013/1/21
N2 - We consider a cosmological model 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 terminates inflation naturally. © 2013 SISSA, Trieste, Italy.
AB - We consider a cosmological model 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 terminates inflation naturally. © 2013 SISSA, Trieste, Italy.
KW - Cosmology of Theories beyond the SM
KW - Models of Quantum Gravity
KW - Renormalization Regularization and Renormalons
UR - http://www.scopus.com/inward/record.url?scp=84872330546&partnerID=8YFLogxK
U2 - 10.1007/JHEP01(2013)067
DO - 10.1007/JHEP01(2013)067
M3 - Article
SN - 1126-6708
VL - 2013
JO - Journal of High Energy Physics
JF - Journal of High Energy Physics
IS - 67
M1 - 067
ER -