Hunt for light primordial black hole dark matter with ultrahigh-frequency gravitational waves

  title={Hunt for light primordial black hole dark matter with ultrahigh-frequency gravitational waves},
  author={Gabriele Franciolini and Anshuman Maharana and Francesco Muia},
  journal={Physical Review D},
: Light primordial black holes may comprise a dominant fraction of the dark matter in our Universe. This paper critically assesses whether planned and future gravitational wave detectors in the ultra-high-frequency band could constrain the fraction of dark matter composed of sub-solar primordial black holes. Adopting the state-of-the-art description of primordial black hole merger rates, we compare various signals with currently operating and planned detectors. As already noted in the… 

Figures from this paper



Formation and Abundance of Late-forming Primordial Black Holes as Dark Matter

We propose a novel mechanism where primordial black hole (PBH) dark matter is formed much later in the history of the universe, between the epochs of Big Bang nucleosynthesis and cosmic microwave

Primordial Black Hole Dark Matter: LISA Serendipity.

It is shown that, if these primordial black holes are the dark matter, LISA will be able to detect the associated GW power spectrum and the signal measured by LISA is a sum of the signal from a large number of independent sources suppressing the non-Gaussianity at detection to an unobservable level.

Primordial Black Holes: from Theory to Gravitational Wave Observations

Primordial Black Holes (PBH) can form in the early universe and might comprise a significant fraction of the dark matter. Interestingly, they are accompanied by the generation of Gravitational Wave

Relic gravitational waves from light primordial black holes

The energy density of relic gravitational waves (GWs) emitted by primordial black holes (PBHs) is calculated. We estimate the intensity of GWs produced at quantum and classical scattering of PBHs,

Cosmic microwave background limits on accreting primordial black holes

Interest in the idea that primordial black holes (PBHs) might comprise some or all of the dark matter has recently been rekindled following LIGO’s first direct detection of a binary-black-hole

Primordial black holes—perspectives in gravitational wave astronomy

This article reviews current understanding of primordial black holes (PBHs), with particular focus on those massive examples (≳1015 g) which remain at the present epoch, not having evaporated through

Primordial black holes as dark matter and gravitational waves from single-field polynomial inflation

We consider the possibility that the majority of dark matter in our Universe consists of black holes of primordial origin. We determine the conditions under which such black holes may have originated

Merger rates in primordial black hole clusters without initial binaries

Primordial black holes formed through the collapse of cosmological density fluctuations have been hypothesized as contributors to the dark matter content of the Universe. At the same time, their

Primordial black hole dark matter and the LIGO/Virgo observations

  • K. Jedamzik
  • Physics
    Journal of Cosmology and Astroparticle Physics
  • 2020
The LIGO/Virgo collaboration have by now detected the mergers of ten black hole binaries via the emission of gravitational radiation. The hypothesis that these black holes have formed during the

Massive Primordial Black Holes as Dark Matter and their detection with Gravitational Waves

Massive Primordial Black Holes (MPBH) can be formed after inflation due to broad peaks in the primordial curvature power spectrum that collapse gravitationally during the radiation era, to form