3 papers
astro-ph.CO2026
Inflation with the Gauss-Bonnet term in the Palatini formulation
Ali Hassan, Syksy Rasanen
We consider the Gauss-Bonnet term coupled to the inflaton in the Palatini formulation of gravity. Unlike in the metric formulation, the Gauss-Bonnet term is not always a total deri…
astro-ph.CO2024
Inflation with the Chern-Simons term in the Palatini formulation
Ali Hassan, Syksy Rasanen
We consider the Chern--Simons term coupled to the inflaton in the Palatini formulation of general relativity. In contrast to the metric formulation, here the Chern--Simons term aff…
gr-qc2023
Scalar fields with derivative coupling to curvature in the Palatini and the metric formulation
Hamed Bouzari Nezhad, Syksy Rasanen
We study models where a scalar field has derivative and non-derivative couplings to the Ricci tensor and the co-Ricci tensor with a view to inflation. We consider both the metric f…