Slow Roll Inflation: A Somehow Different Perspective

Understand

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.