Warm inflation with an oscillatory inflaton in the non-minimal kinetic coupling model

Understand

In the cold inflation scenario, the slow roll inflation and reheating via coherent rapid oscillation, are usually considered as two distinct eras.

• When the slow roll ends, a rapid oscillation phase begins and the inflaton decays to relativistic particles reheating the Universe.
• In another model dubbed warm inflation, the rapid oscillation phase is suppressed, and we are left with only a slow roll period during which the reheating occurs.
• Instead, in this paper, we propose a new picture for inflation in which the slow roll era is suppressed and only the rapid oscillation phase exists.