Is the formation of primordial black holes from single-field inflation compatible with standard cosmology?
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| Main Authors: | , , , |
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| Format: | Preprint |
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2024
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| _version_ | 1866912454057918464 |
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| author | Allegrini, Sasha Del Grosso, Loris Iovino, Antonio J. Urbano, Alfredo |
| author_facet | Allegrini, Sasha Del Grosso, Loris Iovino, Antonio J. Urbano, Alfredo |
| contents | In this work, we investigate the generation of primordial black holes (PBHs) within the framework of single-field inflationary models and their compatibility with the cosmological history of the Universe. Our results suggest that, depending on the masses of the formed PBHs, single-field inflation models require more than fine-tuning a potential to induce ultra-slow roll; it necessitates a comprehensive understanding of the post-inflationary cosmological evolution. As an explicative example, we introduce a new model, based on a double inflection point and consistent with Cosmic Microwave Background observations, capable of generating sub-solar PBHs, whose merger could be potentially detectable by the LVK experiment. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2412_14049 |
| institution | arXiv |
| publishDate | 2024 |
| record_format | arxiv |
| spellingShingle | Is the formation of primordial black holes from single-field inflation compatible with standard cosmology? Allegrini, Sasha Del Grosso, Loris Iovino, Antonio J. Urbano, Alfredo Cosmology and Nongalactic Astrophysics General Relativity and Quantum Cosmology High Energy Physics - Phenomenology In this work, we investigate the generation of primordial black holes (PBHs) within the framework of single-field inflationary models and their compatibility with the cosmological history of the Universe. Our results suggest that, depending on the masses of the formed PBHs, single-field inflation models require more than fine-tuning a potential to induce ultra-slow roll; it necessitates a comprehensive understanding of the post-inflationary cosmological evolution. As an explicative example, we introduce a new model, based on a double inflection point and consistent with Cosmic Microwave Background observations, capable of generating sub-solar PBHs, whose merger could be potentially detectable by the LVK experiment. |
| title | Is the formation of primordial black holes from single-field inflation compatible with standard cosmology? |
| topic | Cosmology and Nongalactic Astrophysics General Relativity and Quantum Cosmology High Energy Physics - Phenomenology |
| url | https://arxiv.org/abs/2412.14049 |