Speaker
Description
Primordial black holes (PBHs) are a unique probe of the early Universe and offer a potential link between inflationary dynamics and dark matter. In this talk, I will present our recent work investigating PBH formation in the presence of local non-Gaussianities, exploiting a logarithmic duality relation to study a variety of inflationary mechanisms that locally deviate from slow-roll dynamics. Using numerical relativity simulations, we accurately compute the formation thresholds and resolve the expected PBH abundances, along with their associated Scalar Induced Gravitational Waves (SIGWs). We provide signal predictions for LISA-like experiments and discuss the interpretation of SIGWs in the context of the nanoHz stochastic gravitational wave background recently reported by Pulsar Timing Array observations.
