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arxiv: 0801.0116 · v1 · submitted 2007-12-30 · 🌌 astro-ph · gr-qc· hep-ph

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Primordial Black Holes

M. Yu. Khlopov
Authors on Pith no claims yet
classification 🌌 astro-ph gr-qchep-ph
keywords primordialearlyuniverseblackformationholesparticlephysics
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Primordial black holes (PBHs) are a profound signature of primordial cosmological structures and provide a theoretical tool to study nontrivial physics of the early Universe. The mechanisms of PBH formation are discussed and observational constraints on the PBH spectrum, or effects of PBH evaporation, are shown to restrict a wide range of particle physics models, predicting an enhancement of the ultraviolet part of the spectrum of density perturbations, early dust-like stages, first order phase transitions and stages of superheavy metastable particle dominance in the early Universe. The mechanism of closed wall contraction can lead, in the inflationary Universe, to a new approach to galaxy formation, involving primordial clouds of massive BHs created around the intermediate mass or supermassive BH and playing the role of galactic seeds.

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Cited by 4 Pith papers

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

  1. Inflation driven by repulsive-like primordial black holes

    gr-qc 2026-04 unverdicted novelty 5.0

    Repulsive-like primordial black holes in the Swiss-cheese framework produce quasi-de Sitter expansion, enabling inflation with evaporation reheating and acting as early dark energy for certain masses and densities.

  2. Fermion Condensate Inflation, Dynamical Waterfall Mechanism and Primordial Black Holes

    hep-th 2026-04 unverdicted novelty 5.0

    Torsion-induced fermion condensate produces hybrid inflation with axial-chemical-potential waterfall, Q-ball PBH seeds, and parity-violating signatures in Chern-Simons gravity.

  3. Memory-Burden Suppression of Hawking Radiation and Neutrino Constraints on Primordial Black Holes

    hep-ph 2026-04 unverdicted novelty 5.0

    Memory-burden backreaction deforms the Hawking spectrum to suppress its high-energy tail, lowering total luminosity and neutrino flux by a factor set by a single suppression parameter and thereby relaxing IceCube boun...

  4. Probing Primordial Black Holes with upcoming Radio Telescopes: a case study for LOFAR2.0, FAST Core Array and BINGO

    astro-ph.CO 2026-04 unverdicted novelty 4.0

    LOFAR2.0, FAST Core Array and BINGO can constrain the PBH dark matter fraction f_PBH below 0.16-0.39 for masses above 10^{-2} to 10 solar masses via FRB lensing statistics.