Induced Gravitational Waves and Primordial Black Holes

Explore a 29-minute lecture from the International Centre for Theoretical Sciences that delves into induced gravitational waves and primordial black holes as part of the "Hearing beyond the standard model with cosmic sources of Gravitational Waves" program. Learn about the experimental detection of gravitational waves from merging black holes and neutron stars, and discover how these waves can probe physics beyond the Standard Model. Understand the connection between inflation, tensor perturbations, and the formation of Primordial Black Holes (PBH), along with their signatures in induced gravitational waves and non-gaussianities. Examine how cosmological first-order Phase Transitions, topological defects, and other phenomena contribute to the Stochastic Gravitational Wave Background (SGWB). Gain insights into recent discoveries by NANO-Grav, InPTA, and other PTA collaborations regarding the first evidence of SGWB detection based on 15 years of observational data.