Although the dark matter is usually assumed to be made up of some form of elementary
particle, primordial black holes (PBHs) could also provide some of it. However, various …

We update the constraints on the fraction of the Universe that may have gone into primordial
black holes (PBHs) over the mass range 10− 5 to 10 50 g. Those smaller than∼ 10 15 g …

Cosmological gravitational particle production (CGPP) is the creation of particles in an
expanding universe due solely to their gravitational interaction. These particles can play an …

The nature of dark matter and properties of neutrinos are among the most pressing issues in
contemporary particle physics. The dual-phase xenon time-projection chamber is the …

It is commonly assumed that the energy density of the Universe was dominated by radiation
between reheating after inflation and the onset of matter domination 54,000 years later …

The detection of gravitational waves from mergers of tens of Solar mass black hole binaries
has led to a surge in interest in primordial black holes (PBHs) as a dark matter candidate …

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 …

We investigate the production process of induced gravity waves due to large scalar
fluctuations in the paradigm of quintessential inflation. We numerically solve the Mukhanov …

We propose a novel primordial black hole (PBH) formation mechanism based on a first-
order phase transition (FOPT). If a fermion species gains a huge mass in the true vacuum …

A bstract We study the formation of primordial black holes (PBHs) in strongly super-cooled
first-order phase transitions. The mechanism is based on the presence of remnants …