Regularization of Single Field Inflation Models

Abstract

There are many single field inflationary models that are consistent with the recent Planck 2018 measurements of the spectral index $n_s$ and tensor-to-scalar ratio $r$. Despite good agreement with observational data some of these models suffer from having unregularized potentials which would produce a collapsing universe shortly after the end of inflation. In this paper we show that how one chooses to correct the behaviour potential towards the end of inflation can have a significant effect on the inflationary predictions of the model, specifically in the case of quartic hilltop and radiatively corrected Higgs inflation.

25 pages, 25 figures

References in corpus (8)

• BICEP / Keck XIII: Improved Constraints on Primordial Gravitational Waves using Planck, WMAP, and BICEP/Keck Observations through the 2018 Observing Season
• Higgs inflation: consistency and generalisations
• Inflation scenario via the Standard Model Higgs boson and LHC
• Reheating predictions in single field inflation
• Superconformal Symmetry, NMSSM, and Inflation
• Unitarizing Higgs Inflation
• Inflation by non-minimal coupling
• An analytic treatment of Quartic Hilltop Inflation

Cited by in corpus (2)

• Minimizing the tensor-to-scalar ratio in single-field inflation models
• Preheating and gravitational waves in large-field hilltop inflation