Large-field polynomial inflation in Palatini f(R, phi) gravity can match Planck and BICEP/Keck data over broad parameter regions, and a negative R-squared coupling can suppress the tensor-to-scalar ratio to CMB-S4 levels.
Inflection point inflation and dark energy in supergravity
1 Pith paper cite this work. Polarity classification is still indexing.
1
Pith paper citing it
abstract
We consider an inflection point inflationary model in supergravity with a single chiral superfield and show that the predicted values of the scalar spectral index and tensor-to-scalar ratio are consistent with the Planck 2015 results. In this model supersymmetry is strongly broken after inflation, which results in a non-SUSY de-Sitter vacuum responsible for the recent accelerated expansion of the Universe.
fields
astro-ph.CO 1years
2024 1verdicts
CONDITIONAL 1representative citing papers
citing papers explorer
-
Large Field Polynomial Inflation in Palatini $f(R,\phi)$ Gravity
Large-field polynomial inflation in Palatini f(R, phi) gravity can match Planck and BICEP/Keck data over broad parameter regions, and a negative R-squared coupling can suppress the tensor-to-scalar ratio to CMB-S4 levels.