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Gravitational Wave Production During Reheating: From the Inflaton to Primordial Black Holes

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arxiv 2411.04189 v1 pith:SRXQVFLZ submitted 2024-11-06 hep-ph astro-ph.CO

Mathieu Gross , Essodjolo Kpatcha , Yann Mambrini , Maria Olalla Olea-Romacho , Rishav Roshan This is my paper · ORCID
classification hep-phastro-ph.CO
keywords gravitationalinflatonblackholespbhsprimordialproductionthree
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abstract

We calculate the gravitational waves (GWs) produced by primordial black holes (PBHs) in the presence of the inflaton condensate in the early Universe. Combining the GW production from the evaporation process, the gravitational scattering of the inflaton itself, and the density fluctuations due to the inhomogeneous distribution of PBHs, we propose for the first time a complete coherent analysis of the spectrum, revealing three peaks, one for each source. Three frequency ranges ($\sim$ kHz, GHz, and PHz, respectively) are expected, each giving rise to a similar GW peak amplitude $\Omega_{\rm GW}$. We also compare our predictions with current and future GWs detection experiments.

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Cited by 4 Pith papers

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

  1. Burdening (or not) gravitational waves in the presence of primordial black holes

    hep-ph 2025-09 conditional novelty 6.0 of 10

    A single gravitational wave template combining inflaton and evaporating primordial black hole sources, with and without memory burden, yields new frequency-ratio signatures for testing black hole evaporation.

  2. Phenomenological Constraints on Higgs reheating

    hep-ph 2025-08 unverdicted novelty 5.0 of 10

    For Higgs-portal reheating with a light inflaton, the combination of vacuum stability, perturbativity, and LHC constraints limits the reheating temperature to between roughly 3.4e6 and 3.9e12 GeV.

  3. Waterfall phase in supersymmetric hybrid inflation

    hep-ph 2025-07 conditional novelty 4.0 of 10

    Waterfall-phase e-foldings in R-symmetric SUSY hybrid inflation can produce a PTA-compatible scalar-induced gravitational wave background and, in SU(5), dilute monopoles to observable levels.

  4. Relativistic accretion and burdened primordial black holes

    astro-ph.CO 2025-07 conditional novelty 4.0 of 10

    Combining relativistic accretion with memory-burdened evaporation widens the parameter space for primordial black holes as dark matter and changes dark matter and dark radiation emission predictions.

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