Abstract The Laser Interferometer Space Antenna (LISA) has the potential to reveal wonders
about the fundamental theory of nature at play in the extreme gravity regime, where the …

We provide a review on the state-of-the-art of gravitational waves induced by primordial
fluctuations, so-called induced gravitational waves. We present the intuitive physics behind …

We review the formation and evaporation of primordial black holes (PBHs) and their
possible contribution to dark matter. Various constraints suggest they could only provide …

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 …

A bstract We show that a scalar excited state with large occupation numbers during inflation
leads to an enhancement of tensor modes and a characteristic pattern of order-one …

Abstract Primordial Black Holes (PBHs) are a viable candidate to comprise some or all of the
dark matter and provide a unique window into the high-energy physics of the early universe …

Adopting a binned method, we model-independently reconstruct the mass function of
primordial black holes (PBHs) from GWTC-3 and find that such a PBH mass function can be …

We present a search for gravitational waves from the coalescence of binaries which contain
at least one subsolar-mass component using data from the LIGO and Virgo observatories …

The next generation of gravitational-wave experiments, such as Einstein Telescope, Cosmic
Explorer and LISA, will test the primordial black hole scenario. We provide a forecast for the …

We present a search for gravitational waves from the coalescence of subsolar-mass black
hole binaries using data from the first half of Advanced LIGO and Virgo's third observing run …