Gravitational Waves from the Early Universe and Cosmic Domain Walls

Explore gravitational waves from the early Universe and cosmic domain walls in this high-energy physics seminar presented by Fabrizio Rompineve from Institut de Física d'Altes Energies. Learn about new physics in the early Universe that may feature sources of gravitational waves detectable at interferometers and Pulsar Timing Arrays. Discover the general properties of cosmological gravitational wave backgrounds that help distinguish them from astrophysical signals. Examine cosmic topological defects, specifically domain walls, as well-motivated possible sources of gravitational waves in the early Universe. Understand the general properties of domain wall networks and their particle physics implementation. Review recent progress in describing their cosmological evolution and gravitational wave signals. Investigate the possibility of producing primordial black holes from the collapse of domain walls, connecting theoretical particle physics with observational cosmology and gravitational wave astronomy.