Slow Roll Inflation: A Somehow Different Perspective

Details Slow Roll Inflation: A Somehow Different Perspective Slow Roll Inflation: A Somehow Different Perspective

2011-12-05

arxiv.org/abs/1112.1083v1

Astronomy and Astrophysics

Astrophysics

Cosmology and Extragalactic Astrophysics

8 pages; Proceedings of the BW2011 Workshop "Particle Physics from TeV to Plank Scale" (28 August - 1 September 2011, Donji Mi

Scientific paper

In this note we point out that, contrary to the standard point of view, slow roll inflation is due to high gravitational friction. We show that the requirement of slow roll coincides with the requirement of a flat scalar field potential in the case of minimally coupled scalar field. In this sense, the search for a successful inflationary theory may be more fruitful by shifting the focus on models with high gravitational friction. We review then a gravitational mechanism, the so called "Gravitationally Enhanced Friction" mechanism, such that high gravitational friction is dynamically generated during inflation allowing even steep (i.e. non-flat) scalar potential to inflate.

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