Abstract
In non-oscillatory (NO) inflationary models, the reheating mechanism was usually based on gravitational particle production or the mechanism of instant preheating. In this Letter we introduce the curvaton mechanism into NO models to reheat the universe and generate the curvature perturbations. Specifically we consider the Peebles–Vilenkin quintessential inflation model, where the reheating temperature can be extended from 1 MeV to 1013 GeV.
Highlights
In non-oscillatory (NO) inflationary models, the reheating mechanism was usually based on gravitational particle production or the mechanism of instant preheating
The reheating mechanism is based on the oscillations and decays of another scalar field σ which is sub-dominant during inflation and has no interactions with inflaton except
We have introduced the curvaton mechanism into the non-oscillatory inflationary models as a possible reheating mechanism and did specific studies in the quintessential inflation model proposed by Peebles and Vilenkin
Summary
In non-oscillatory (NO) inflationary models, the reheating mechanism was usually based on gravitational particle production or the mechanism of instant preheating. The reheating mechanism is based on the oscillations and decays of another scalar field σ (the curvaton field) which is sub-dominant during inflation and has no interactions with inflaton except The curvature perturbations become pure when the curvaton field or the radiation it decays into begins to dominate the universe.
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