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arXiv · 2208.09390

Regularization of Single Field Inflation Models

Josh Hoffmann·David Sloan
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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.

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Josh Hoffmann, David Sloan. 2022-08-19. Regularization of Single Field Inflation Models. https://doi.org/10.1103/physrevd.107.023502

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