Reheating in Constant-roll $F(R)$ Gravity

Abstract

In this work we address the reheating issue in the context of $F(R)$ gravity, for theories that the inflationary era does not obey the slow-roll condition but the constant-roll condition is assumed. As it is known, the reheating era takes place after the end of the inflationary era, so we investigate the implications of a constant-roll inflation era on the reheating era. We quantify our considerations by calculating the reheating temperature for the constant-roll $R^2$ model and we compare to the standard reheating temperature in the context of $F(R)$ gravity. As we demonstrate, the new reheating temperature may differ from the standard one, and in addition we show how the reheating era may restrict the constant-roll era by constraining the constant-roll parameter.

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Cited by in corpus (6)

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• Constant-roll $k$-Inflation Dynamics
• The Early-time Cosmology with Stiff Era from Modified Gravity
• Anisotropic constant-roll inflation for the Dirac-Born-Infeld model
• Reheating and particle creation in unimodular f(R, T) gravity
• Reheating era in Gauss-Bonnet theories of gravity compatible with the GW170817 event