Preheating with Non-Standard Kinetic Term

Details Preheating with Non-Standard Kinetic Term Preheating with Non-Standard Kinetic Term

2008-08-06

arxiv.org/abs/0808.0936v3

JCAP 0904:020,2009

Physics

High Energy Physics

High Energy Physics - Theory

7 pages, 3 figures, a couple of typos corrected, a sentence added to the discussion section

Scientific paper

10.1088/1475-7516/2009/04/020

We consider reheating after inflation in theories with a non-standard kinetic term. We show that the equation that exhibits parametric resonance is the Hill-Whittaker equation, which is a particular case of the more general Hill equation. This equation is in general more unstable than the Mathieu equation, such that narrow resonance preheating may be efficient in theories with a non-canonical kinetic term.

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