Theodoros Papanikolaou, "Primordial black holes and induced gravitational waves"
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Europe/Rome
0M04
0M04
Description
Primordial black holes (PBHs) can generically form through the collapse of enhanced cosmological perturbations, constituting in some specific mass ranges a viable candidate for dark matter. Interestingly enough, the enhanced cosmological perturbations which collapse to form PBHs as well as the PBH energy density perturbations themselves can produce a stochastic gravitational-wave (GW) background induced by second-order gravitational interactions, which can be detectable in GW observatories. In this talk, after introducing initially the motivation for the physics of PBHs and the associated to them GW signals I will focus afterwards on the ultra-light PBH mass range and its induced GW signatures through which one can probe the physics of the primordial Universe and the underlying gravity theory testing as well fundamental high-energy physics theories.
