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Explore a comprehensive lecture on gravitational waves and their role as a theoretical tool in physics, delivered by Mairi Sakellariadou at the International Centre for Theoretical Sciences. Learn about the experimental detection of gravitational waves from merging black holes and neutron stars, and discover how these cosmic ripples serve as probes for physics beyond the Standard Model. Understand various sources of gravitational waves, including inflation-related phenomena, Primordial Black Holes, cosmological phase transitions, and topological defects like cosmic strings. Examine the significance of Stochastic Gravitational Wave Background (SGWB) signals and their detection by collaborations like NANO-Grav and InPTA. Delve into the implications of gravitational wave detection for high-scale physics research and potential modifications to general relativity, while gaining insights from experts in particle physics, cosmology, and gravitational wave research during this 70-minute presentation.
