Primordial Black Holes and Loops in Single-Field Inflation - Archive ouverte HAL
Article Dans Une Revue Journal of Cosmology and Astroparticle Physics Année : 2024

Primordial Black Holes and Loops in Single-Field Inflation

Résumé

Using the $\delta N$ formalism we calculate the one-loop correction to the large-scale power spectrum of the curvature perturbation in the standard scenario where primordial black holes are formed in the early universe thanks to a phase of ultra-slow-roll in single-field inflation. We explicitly show that one-loop corrections are negligible when the transition from the ultra-slow-roll to the slow-roll phase is smooth. We conclude that the PBH formation scenario through a ultra-slow-roll phase is viable.

Dates et versions

hal-04092173 , version 1 (09-05-2023)

Identifiants

Citer

Hassan Firouzjahi, Antonio Riotto. Primordial Black Holes and Loops in Single-Field Inflation. Journal of Cosmology and Astroparticle Physics, 2024, 02, pp.021. ⟨10.1088/1475-7516/2024/02/021⟩. ⟨hal-04092173⟩
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