Continuous Bogoliubov formalism for gravitational-wave generation in a unified dark sector warm inflation
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arXiv
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| Format: | Preprint |
| Publié: |
2026
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| _version_ | 1866917546297393152 |
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| author | Mengoni, Tommaso |
| author_facet | Mengoni, Tommaso |
| contents | In this work, we review gravitational-wave generation in a two-scalar-field cosmological model. The framework relies on a two-field scenario in which warm inflation is unified with the dark sector within a single theoretical description. It has recently been shown that this setup leads to a gravitational-wave spectrum potentially detectable by future experiments. Here we also demonstrate that the resulting spectrum is largely independent of the $ϕ$ field initial condition, thereby extending previous findings. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2605_04742 |
| institution | arXiv |
| publishDate | 2026 |
| record_format | arxiv |
| spellingShingle | Continuous Bogoliubov formalism for gravitational-wave generation in a unified dark sector warm inflation Mengoni, Tommaso General Relativity and Quantum Cosmology In this work, we review gravitational-wave generation in a two-scalar-field cosmological model. The framework relies on a two-field scenario in which warm inflation is unified with the dark sector within a single theoretical description. It has recently been shown that this setup leads to a gravitational-wave spectrum potentially detectable by future experiments. Here we also demonstrate that the resulting spectrum is largely independent of the $ϕ$ field initial condition, thereby extending previous findings. |
| title | Continuous Bogoliubov formalism for gravitational-wave generation in a unified dark sector warm inflation |
| topic | General Relativity and Quantum Cosmology |
| url | https://arxiv.org/abs/2605.04742 |