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arXiv · gr-qc/9712061

Inflation without Slow Roll

Thibault Damour·Viatcheslav F. Mukhanov
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Abstract

We draw attention to the possibility that inflation (i.e. accelerated expansion) might continue after the end of slow roll, during a period of fast oscillations of the inflaton field ϕ. This phenomenon takes place when a mild non-convexity inequality is satisfied by the potential V(ϕ). The presence of such a period of ϕ-oscillation-driven inflation can substantially modify reheating scenarios. In some models the effect of these fast oscillations might be imprinted on the primordial perturbation spectrum at cosmological scales.

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BibTeXRIS

Thibault Damour, Viatcheslav F. Mukhanov. 1998-03-04. Inflation without Slow Roll. https://doi.org/10.1103/physrevlett.80.3440

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