Preheating and Reheating after Standard Inflation

Abstract

We study the two-phase scenario following inflation, where the initial step is preheating, accompanied by a step of perturbative reheating at which inflaton field decays transferring all of its energy to create relativistic particles, the interaction of these particles will evolve towards a state of thermal equilibrium with a temperature Tre called the reheating temperature. It is observed that the scenario of reheating normally predicts the maximum reheating temperature that corresponds to an almost instantaneous transition from inflation to the radiation domination era. This will naturally lead to a nonperturbative preheating. In this framework, we propose constraints on the reheating duration parameters expressed in terms of the cosmic microwave background (CMB) inflationary scalar spectral index. In this work, we study the compatibility of polynomial and Higgs models of inflation with the observational data obtained from Planck 2018.

References in corpus (7)

• Towards the Theory of Reheating After Inflation
• The Best Inflationary Models After Planck
• Reheating constraints to inflationary models
• Reheating predictions in single field inflation
• Equation of state and Beginning of Thermalization After Preheating
• Bayesian Analysis of Inflation II: Model Selection and Constraints on Reheating
• Curvaton reheating in tachyonic braneworld inflation

Cited by in corpus (3)

• Constraints on primordial black holes for nonstandard cosmologies
• A possible solution to the Hubble tension from quantum gravity
• Unifying inflationary and reheating solution