Non-minimally coupled quartic inflation with Coleman-Weinberg one-loop corrections in the Palatini formulation

Understand

We discuss how the non-minimal coupling $\xi \phi^2 R$ between the inflaton and the Ricci scalar affects predictions of single field inflation models in Palatini formalism.

• To transition radiation dominated era, the inflaton field $\phi$ must interact to matter fields at the end of inflation.
• Interactions of the inflaton with other fields lead to radiative corrections to the inflationary potential.
• These radiative corrections can be explained at leading order by Coleman-Weinberg (CW) one-loop corrections.