We review numerous arguments for primordial black holes (PBHs) based on observational
evidence from a variety of lensing, dynamical, accretion and gravitational-wave effects. This …

In the recent years, primordial black holes (PBHs) have emerged as one of the most
interesting and hotly debated topics in cosmology. Among other possibilities, PBHs could …

Sizeable primordial curvature perturbations needed to seed a population of primordial black
holes (PBHs) will be accompanied by a scalar-induced gravitational wave signal that can be …

Primordial black holes (PBHs) can efficiently form black hole binaries in the early Universe.
We update the resulting constraints on PBH abundance using data from the third …

In the mixed dark matter scenarios consisting of primordial black holes (PBHs) and particle
dark matter (DM), PBHs can accrete surrounding DM particles to form ultracompact …

Various mechanisms have been suggested for the formation of Primordial Black Holes
(PBHs), and this thesis focuses on the standard mechanism based on the critical collapse of …

We study a primordial black hole (PBH) formation model based on the framework of the
inhomogeneous Affleck-Dine (AD) mechanism, which can explain the seeds of …

Primordial black holes (PBHs) of stellar mass or heavier would accrete baryonic gas, which
becomes denser and hotter, injecting energetic photons in the cosmological medium soon …

If present in the early universe, primordial black holes (PBHs) will accrete matter and emit
high-energy photons, altering the statistical properties of the {Cosmic Microwave …

Sizeable primordial curvature perturbations needed to seed a population of primordial black
holes (PBHs) will be accompanied by a scalar-induced gravitational wave signal that can be …