May 6 – 10, 2024
Europe/Rome timezone

Gravitational Waves from Domain Wall Dynamics

May 6, 2024, 2:30 PM
Room 2.1 (MECC)

Room 2.1


Presentation Observational Science Board (OSB) OSB


Domain walls are topological defects that arise whenever a discrete symmetry is spontaneously broken. Being motivated in several Beyond the Standard Model scenarios, including axion-like particle models, domain walls are viable sources of a stochastic gravitational wave background with a broken power-law spectrum that could be detected by the near and far future third generation interferometers. In this talk, I will review the basics theoretical motivations and observational prospects for domain walls in gravitational wave experiments, including updated prospects for the ET sensitivities. I will also emphasise the importance of friction from particles in the surrounding plasma scattering against domain walls, which could affect the resulting gravitational wave emission.

Primary author

Aaron Rase

Presentation materials