Preheating with non-minimal kinetic terms

Child, Hilary L, Giblin, John T, Jr, Ribeiro, Raquel H and Seery, David (2013) Preheating with non-minimal kinetic terms. Physical Review Letters, 111. 051301-1-051301-5. ISSN 0031-9007

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We present the first 3+1-dimensional numerical simulations of scalar fields with non-minimal kinetic terms. As an example, we examine the existence and stability of preheating in the presence of a Dirac-Born-Infeld (DBI) inflaton coupled to a canonical matter field. The simulations represent the full non-linear theory in the presence of an expanding Universe. We show that parametric resonance in the matter field, along with self-resonance in the inflaton, repopulate the Universe with matter particles as efficiently as in traditional preheating.

Item Type: Article
Schools and Departments: School of Mathematical and Physical Sciences > Physics and Astronomy
Subjects: Q Science > QB Astronomy > QB0980 Cosmogony. Cosmology
Depositing User: David Seery
Date Deposited: 08 Sep 2014 09:44
Last Modified: 02 Jul 2019 20:20

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