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Primordial Black Holes Are True Vacuum Nurseries

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arxiv 2311.01869 v1 pith:V2URS4TH submitted 2023-11-03 hep-ph astro-ph.COgr-qchep-th

Louis Hamaide , Lucien Heurtier , Shi-Qian Hu , Andrew Cheek This is my paper
classification hep-phastro-ph.COgr-qchep-th
keywords blackholesvacuumprimordialspotsapplyavoidingbeta
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abstract

The Hawking evaporation of primordial black holes (PBH) reheats the Universe locally, forming hot spots that survive throughout their lifetime. We propose to use the temperature profile of such hot spots to calculate the decay rate of metastable vacua in cosmology, avoiding inconsistencies inherent to the Hartle-Hawking or Unruh vacuum. We apply our formalism to the case of the electroweak vacuum stability and find that a PBH energy fraction $\beta > 7\times 10^{-80} (M/g)^{3/2}$ is ruled out for black holes with masses $0.8 g < M < 10^{15} g$.

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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. Gravitational Waves from Black Hole Reheating: The Scalar-Induced Component

    hep-ph 2026-05 unverdicted novelty 7.0 of 10

    Accounting for the minimal mass spread of primordial black holes from gravitational collapse suppresses the Poltergeist GW background to the level of generic scalar-induced signals and reopens ultra-light PBH parameter space.

  2. Primordial Black Hole Hotspots Beyond Flat Spacetime

    hep-ph 2026-05 unverdicted novelty 6.0 of 10

    Hotspots around light primordial black holes cool faster in an expanding universe following T_plt ∝ t^{-11/15} and vanish completely in finite time, unlike everlasting hotspots in flat spacetime.

  3. Revisiting PBH accretion, evaporation and their cosmological consequences

    astro-ph.HE 2025-12 conditional novelty 6.0 of 10

    Relativistic accretion onto Kerr primordial black holes gives roughly 4.5x mass growth and fast spin-down, strengthening BBN bounds, lowering the survival mass to ~2.7e14 g, and erasing the high-frequency stochastic g...

  4. Evaporation of Primordial Black Holes in a Thermal Universe: A Thermofield Dynamics Approach

    hep-th 2025-12 unverdicted novelty 5.0 of 10

    Thermal bath corrections derived via thermofield dynamics enhance the evaporation rate of primordial black holes, shortening their lifetimes relative to zero-temperature calculations.

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