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| Main Authors: | , |
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| Format: | Preprint |
| Published: |
2024
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| Subjects: | |
| Online Access: | https://arxiv.org/abs/2408.00595 |
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| _version_ | 1866916342826795008 |
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| author | Yeasmin, Sabina Deshamukhya, Atri |
| author_facet | Yeasmin, Sabina Deshamukhya, Atri |
| contents | We study warm inflation in the framework of $f(ϕ)T$ gravity, where $ϕ$ is the inflaton and $T$ is the trace of the energy-momentum tensor. The inflaton field is assumed to roll on the natural potential and the result is analyzed in light of Planck 2018 and BICEP/Keck 2021 data. We start our work by obtaining the field equations under slow-roll approximations. We then evaluate the scalar and tensor power spectra and their corresponding spectral index and tensor-to-scalar ratio with a temperature-dependent form of the dissipation coefficient during the inflationary era. We find that the warm inflation model in $f(ϕ)T$ gravity is compatible with observational bands. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2408_00595 |
| institution | arXiv |
| publishDate | 2024 |
| record_format | arxiv |
| spellingShingle | Embedding Warm Natural Inflation in $f(ϕ)T$ gravity Yeasmin, Sabina Deshamukhya, Atri General Relativity and Quantum Cosmology We study warm inflation in the framework of $f(ϕ)T$ gravity, where $ϕ$ is the inflaton and $T$ is the trace of the energy-momentum tensor. The inflaton field is assumed to roll on the natural potential and the result is analyzed in light of Planck 2018 and BICEP/Keck 2021 data. We start our work by obtaining the field equations under slow-roll approximations. We then evaluate the scalar and tensor power spectra and their corresponding spectral index and tensor-to-scalar ratio with a temperature-dependent form of the dissipation coefficient during the inflationary era. We find that the warm inflation model in $f(ϕ)T$ gravity is compatible with observational bands. |
| title | Embedding Warm Natural Inflation in $f(ϕ)T$ gravity |
| topic | General Relativity and Quantum Cosmology |
| url | https://arxiv.org/abs/2408.00595 |