Speaker
Description
Primordial black holes (PBHs) are a compelling dark matter candidate that can be effectively probed through their gravitational wave (GW) signatures. In this talk, I will focus on standard scenarios in which PBHs form via the collapse of sizeable primordial curvature fluctuations. I will discuss what current pulsar timing array (PTA) measurements can tell us about stellar-mass PBHs and whether future GW detectors could confirm or rule out most scenarios for PBH dark matter. Non-Gaussianities in primordial density fluctuations may play a crucial role in this discussion. I will explore when and how they might affect GW signals from PBH binary mergers and scalar-induced GW backgrounds associated with PBH formation. Finally, I will outline some spectral features characteristic to PBH scenarios.
