Some inflationary models under the light of Planck 2018 results
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arXiv
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| Hauptverfasser: | , , , , |
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| Format: | Preprint |
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2023
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| author | Pozo, Daniel Zambrano, Jordan Villegas, Ismael Hernández-Jiménez, Rafael Rojas, Clara |
| author_facet | Pozo, Daniel Zambrano, Jordan Villegas, Ismael Hernández-Jiménez, Rafael Rojas, Clara |
| contents | 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 $V(ϕ)\sim ϕ^{p}$, 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. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2311_04683 |
| institution | arXiv |
| publishDate | 2023 |
| record_format | arxiv |
| spellingShingle | Some inflationary models under the light of Planck 2018 results Pozo, Daniel Zambrano, Jordan Villegas, Ismael Hernández-Jiménez, Rafael Rojas, Clara General Relativity and Quantum Cosmology 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 $V(ϕ)\sim ϕ^{p}$, 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. |
| title | Some inflationary models under the light of Planck 2018 results |
| topic | General Relativity and Quantum Cosmology |
| url | https://arxiv.org/abs/2311.04683 |