Primordial Perturbations Including Second-Order Derivatives of the Inflationary Potential
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arXiv
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| Main Authors: | , , , |
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| Format: | Preprint |
| Published: |
2024
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| _version_ | 1866917823938297856 |
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| author | Custodio, Paulo Ghezzi, Cristian R. Magalhae, Nadja S. Frajuca, Carlos |
| author_facet | Custodio, Paulo Ghezzi, Cristian R. Magalhae, Nadja S. Frajuca, Carlos |
| contents | In inflationary cosmology, the form of the potential is still an open problem. In this work, second-order effects of the inflationary potential are evaluated and related to the known formula for the primordial perturbations at a wide range of scales. We found effects that may help to unravel the unknown inflationary potential form and impose new constraints on the parameters that define this potential. In particular, we demonstrate that even slight deviations in the inflationary potential can lead to significant differences in the calculated spectra if inflation persists sufficiently long and the normal modes of perturbations are affected by these variations. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2410_23462 |
| institution | arXiv |
| publishDate | 2024 |
| record_format | arxiv |
| spellingShingle | Primordial Perturbations Including Second-Order Derivatives of the Inflationary Potential Custodio, Paulo Ghezzi, Cristian R. Magalhae, Nadja S. Frajuca, Carlos General Relativity and Quantum Cosmology In inflationary cosmology, the form of the potential is still an open problem. In this work, second-order effects of the inflationary potential are evaluated and related to the known formula for the primordial perturbations at a wide range of scales. We found effects that may help to unravel the unknown inflationary potential form and impose new constraints on the parameters that define this potential. In particular, we demonstrate that even slight deviations in the inflationary potential can lead to significant differences in the calculated spectra if inflation persists sufficiently long and the normal modes of perturbations are affected by these variations. |
| title | Primordial Perturbations Including Second-Order Derivatives of the Inflationary Potential |
| topic | General Relativity and Quantum Cosmology |
| url | https://arxiv.org/abs/2410.23462 |