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arXiv · 2311.04683

Some inflationary models under the light of Planck 2018 results

Daniel Pozo·Jordan Zambrano·Ismael Villegas·Rafael Hernández-Jiménez·Clara Rojas
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Abstract

In this work we study four well-known inflationary scenarios that are reported by the most recent Planck observations: Natural inflation, Hilltop quartic inflation, Starobinsky inflationary model, and Large field power-law potentials $V(\phi)\sim \phi^{p}$, considering $p=\sfrac{2}{3}, \sfrac{4}{3}$. The analysis is done using both the slow-roll approximation and the numerical solution to the background and perturbation equations. We show that the numerical solution improved the precision of these models with respect to the contour plot $r$ vs. $n_\sca$, having a lower $r$ in each model compared to the value calculated from the slow-roll approximation.

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Daniel Pozo, Jordan Zambrano, Ismael Villegas, Rafael Hernández-Jiménez, Clara Rojas. 2023-11-08. Some inflationary models under the light of Planck 2018 results. https://arxiv.org/abs/2311.04683

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