Hearing the Sound from Cosmic Phase Transitions - Gravitational Waves and Beyond

Explore a 43-minute lecture from the International Centre for Theoretical Sciences that delves into the fascinating world of cosmic phase transitions and their gravitational wave signatures. Learn about the groundbreaking research in detecting gravitational waves from various cosmological phenomena, particularly focusing on Stochastic Gravitational Wave Background (SGWB) signals produced during cosmic phase transitions. Discover how the universe's transition from false vacuum to true vacuum leads to bubble nucleation and merger events that generate detectable gravitational waves. Understand the significance of recent discoveries by NANO-Grav, InPTA, and other Pulsar Timing Array collaborations in providing the first evidence of SGWB detection. Gain insights into how gravitational wave detection serves as a unique tool for probing high-scale physics beyond the Standard Model of particle physics and cosmology, including phenomena like inflation, Primordial Black Holes, and topological defects. Part of a comprehensive program bringing together experts in particle physics, cosmology, and gravitational wave research to explore the frontiers of our understanding of the universe.