[in Journal: Modern Physics Letters A] AND [Keyword: Monodromy] : Search

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[in Journal: Modern Physics Letters A] AND [Keyword: Monodromy] (1)	30 Mar 2025	Run
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articleNo Access
Preheating with fractional powers
- Hossein Bazrafshan Moghaddam and
- Robert Brandenberger
Modern Physics Letters A29 Nov 2016
Preview Abstract
We consider preheating in models in which the potential for the inflaton is given by a fractional power, as is the case in axion monodromy inflation. We assume a standard coupling between the inflaton field and a scalar matter field. We find that in spite of the fact that the oscillation of the inflaton about the field value which minimizes the potential is anharmonic, there is nevertheless a parametric resonance instability, and we determine the Floquet exponent which describes this instability as a function of the parameters of the inflaton potential.

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