Non-minimal (self-)running inflation: metric vs. Palatini formulation
Antonio Racioppi
Abstract
A bstract We consider a model of quartic inflation where the inflaton is coupled non-minimally to gravity and the self-induced radiative corrections to its effective potential are dominant. We perform a comparative analysis considering two different formulations of gravity, metric or Palatini, and two different choices for the renormalization scale, widely known as prescription I and II. Moreover we comment on the eventual compatibility of the results with the final data release of the Planck mission.
Topics & Concepts
PhysicsInflatonRenormalizationPlanckQuartic functionTheoretical physicsMathematical physicsMetric (unit)Inflation (cosmology)Radiative transferf(R) gravityCompatibility (geochemistry)Cosmic microwave backgroundEffective field theoryHierarchy problemParticle physicsRenormalization groupApplied mathematicsString theoryOmegaCosmology and Gravitation TheoriesBlack Holes and Theoretical PhysicsGalaxies: Formation, Evolution, Phenomena