Constraining Primordial Black Hole Formation from Single-Field Inflation
- ,
9 pages
Published in:
- Phys.Rev.Lett. 132 (2024) 22, 221003
- Published: May 29, 2024
e-Print:
- 2211.03395 [hep-th]
DOI:
- 10.1103/PhysRevLett.132.221003 (publication)
Report number:
- RESCEU-20/22
View in:
Citations per year
Abstract: (APS)
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.Note:
- Accepted Physical Review Letters
- black hole: primordial
- black hole: formation
- inflation
- power spectrum
- perturbation
- cosmic background radiation
- collapse
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