Preheating in Dirac-Born-Infeld inflation

Details Preheating in Dirac-Born-Infeld inflation Preheating in Dirac-Born-Infeld inflation

2010-05-13

arxiv.org/abs/1005.2425v2

JCAP 09 (2010) 011

Astronomy and Astrophysics

Astrophysics

Cosmology and Extragalactic Astrophysics

23 pages

Scientific paper

10.1088/1475-7516/2010/09/011

We study how the universe reheats following an era of chaotic Dirac-Born-Infeld inflation, and compare the rate of particle production with that in models based on canonical kinetic terms. Particle production occurs through non-perturbative resonances whose structure is modified by the nonlinearities of the Dirac-Born-Infeld action. We investigate these modifications and show that the reheating process may be efficient. We estimate the initial temperature of the subsequent hot, radiation-dominated phase.

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