299 citations · 2.9k across the 62 of their papers we have counts for
18 papers · 1 filter
Palatini inflationary (non-)attractors: Universal mapping of observables
Christian Dioguardi, Francesco Gianesello, Antonio Racioppi
We study single-field slow-roll inflation in the context of Palatini gravity for the class of non-minimally coupled -attractors, i.e.,\ models where the same function fix…
Inflation with Nieh-Yan-like terms in metric-affine gravity
Ilaria Andrei, Christian Dioguardi, Damianos Iosifidis +3
We study single-field slow-roll inflation in metric-affine gravity with a scalar field non-minimally coupled to the non-Riemannian Ricci scalar and to the divergences of the torsio…
Quasi-pole quintessential inflation in metric-affine gravity
Konstantinos Dimopoulos, Christian Dioguardi, Ioannis D. Gialamas +1
We study quintessential inflation in the framework of metric-affine gravity. It is well known that non-minimal couplings with the Holst invariant can generate a quasi-pole inflatio…
Quasi-pole inflation in metric-affine gravity
Antonio Racioppi
We propose a new mechanism for inflationary model building in the framework of metric-affine gravity. Such a mechanism involves an inflaton non-minimally coupled with the Holst inv…
Natural inflation in Palatini
N. Bostan, R. H. Dejrah, C. Dioguardi +1
Palatini gravity provides a robust framework for constructing viable inflationary potentials. In this study, we examine natural inflation and show that its consistency with…
Fractional attractors in light of the latest ACT observations
Christian Dioguardi, Antonio J. Iovino, Antonio Racioppi
In light of the latest results from ACT observations we review a class of potentials labeled as fractional attractors, that can originate from Palatini gravity. We show that, for c…