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Formation of primordial black holes after Starobinsky inflation

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arxiv 2205.00603 v4 pith:OU4WVWQY submitted 2022-05-02 astro-ph.CO hep-th

Daniel Frolovsky , Sergei V. Ketov , Sultan Saburov This is my paper · ORCID
classification astro-ph.COhep-th
keywords blackprimordialholesformationinflationmodelperturbationsadapted
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abstract

We adapted the Appleby-Battye-Starobinsky model of $F(R)$ gravity towards describing double cosmological inflation and formation of primordial black holes with masses up to $10^{19}$ g in the single-field model. We found that it is possible to get an enhancement of the power spectrum of scalar curvature perturbations to the level beyond the Hawking (black hole evaporation) limit of $10^{15}$ g, so that the primordial black holes resulting from gravitational collapse of those large primordial perturbations can survive in the present universe and form part of cold dark matter. Our results agree with the current measurements of cosmic microwave background radiation within $3\sigma$ but require fine-tuning of the parameters.

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Cited by 2 Pith papers

Reviewed papers in the Pith corpus that reference this work. Sorted by Pith novelty score. Full citation record

  1. Reconstructing Primordial Curvature Perturbations via Scalar-Induced Gravitational Waves with LISA

    astro-ph.CO 2025-01 conditional novelty 6.0 of 10

    LISA can reconstruct the primordial curvature power spectrum from scalar-induced gravitational waves, with percent-level precision near the peak and Bayesian tests separating SIGWs from other sources.

  2. A complete analysis of inflation with piecewise quadratic potential

    astro-ph.CO 2024-12 conditional novelty 5.0 of 10

    A new parameter alpha governs the amplitude, slope, and dip of the curvature power spectrum in piecewise quadratic two-stage inflation, with maximum growth k^5(log k)^2.

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