Natural exit of fresh inflation to a radiation dominated universe

Abstract

We examine the transition from a fresh inflationary scenario to a radiation dominated universe when the inflaton field is coupled to gravity. We show that this transition is very natural when this coupling is $\xi =1/4$ at the end of fresh inflation. This is a very important result that shows as fresh inflation has a natural exit to the radiation dominated epoch.

Comments: Version accepted in Advanced Studies in Theoretical Physics