Constraining Primordial Black Hole Formation from Single-Field Inflation
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arXiv
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| Autores principales: | , |
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| Formato: | Preprint |
| Publicado: |
2022
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| _version_ | 1866909212410380288 |
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| author | Kristiano, Jason Yokoyama, Jun'ichi |
| author_facet | Kristiano, Jason Yokoyama, Jun'ichi |
| contents | The most widely studied formation mechanism of a primordial black hole is collapse of large-amplitude perturbation on small scales generated in single-field inflation. In this Letter, we calculate one-loop correction to the large-scale power spectrum in a model with sharp transition of the second slow-roll parameter. We find that models producing an appreciable amount of primordial black holes induce nonperturbative coupling on a large scale probed by cosmic microwave background radiation. Our result implies that a small-scale power spectrum can be constrained by large-scale cosmological observations. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2211_03395 |
| institution | arXiv |
| publishDate | 2022 |
| record_format | arxiv |
| spellingShingle | Constraining Primordial Black Hole Formation from Single-Field Inflation Kristiano, Jason Yokoyama, Jun'ichi High Energy Physics - Theory Cosmology and Nongalactic Astrophysics The most widely studied formation mechanism of a primordial black hole is collapse of large-amplitude perturbation on small scales generated in single-field inflation. In this Letter, we calculate one-loop correction to the large-scale power spectrum in a model with sharp transition of the second slow-roll parameter. We find that models producing an appreciable amount of primordial black holes induce nonperturbative coupling on a large scale probed by cosmic microwave background radiation. Our result implies that a small-scale power spectrum can be constrained by large-scale cosmological observations. |
| title | Constraining Primordial Black Hole Formation from Single-Field Inflation |
| topic | High Energy Physics - Theory Cosmology and Nongalactic Astrophysics |
| url | https://arxiv.org/abs/2211.03395 |