299 citations · 725 across the 23 of their papers we have counts for
4 papers · 1 filter
Symmetry-breaking inflation in non-minimal metric-affine gravity
Ioannis D. Gialamas, Antonio Racioppi
We study symmetry-breaking inflation within the framework of metric-affine gravity. By introducing a non-minimal coupling, , between the Holst invariant and the…
-attractors in metric-affine gravity
Antonio Racioppi
We propose a new class of inflationary attractors in metric-affine gravity. Such class features a non-minimal coupling with the Holst invariant an…
Interpreting DESI 2024 BAO: late-time dynamical dark energy or a local effect?
Ioannis D. Gialamas, Gert Hütsi, Kristjan Kannike +4
We perform fits to DESI, CMB and supernova data to understand the physical origin of the DESI hint for dynamical dark energy. We find that the linear parametrization of the equatio…
Natural Metric-Affine Inflation
Antonio Racioppi, Alberto Salvio
We consider here natural inflation in the low energy (two-derivative) metric-affine theory containing only the minimal degrees of freedom in the inflationary sector, i.e. the massl…