Reheating in models with non-minimal couplingin metric and Palatini formalisms
Dhong Yeon Cheong, Sung Mook Lee, Seong Chan Park
Abstract
Abstract We study reheating of inflationary models with general non-minimal coupling K (ϕ) R with K (ϕ) ∼ √( V (ϕ)) where R is the Ricci scalar and R is the inflaton potential. In particular, when we take the monomial potential K (ϕ) ∝ ϕ m with m ∈ℤ + , we provide general analytic expressions for cosmological observables. We consider a wide range of non-minimal coupling ξ∈[0,∞) in metric and Palatini formalisms and derive the predictions for cosmological observables and the reheating temperature taking a general equation of state parameter w reh .
Topics & Concepts
InflatonPhysicsRotation formalisms in three dimensionsObservableMinimal couplingMonomialMetric (unit)Equation of stateCoupling (piping)Inflation (cosmology)Scalar (mathematics)Mathematical physicsTheoretical physicsThermodynamicsQuantum mechanicsPure mathematicsMathematicsGeometryEconomicsEngineeringMechanical engineeringOperations managementCosmology and Gravitation TheoriesBlack Holes and Theoretical PhysicsGalaxies: Formation, Evolution, Phenomena