PIRSA:21060001

Probing the scale of grand unification with gravitational waves

Domcke, V. (2021). Probing the scale of grand unification with gravitational waves. Perimeter Institute. https://pirsa.org/21060001

Domcke, Valerie. Probing the scale of grand unification with gravitational waves. Perimeter Institute, Jun. 22, 2021, https://pirsa.org/21060001 

          @misc{ pirsa_PIRSA:21060001,
            doi = {10.48660/21060001},
            url = {https://pirsa.org/21060001},
            author = {Domcke, Valerie},
            keywords = {Particle Physics},
            language = {en},
            title = {Probing the scale of grand unification with gravitational waves},
            publisher = {Perimeter Institute},
            year = {2021},
            month = {jun},
            note = {PIRSA:21060001 see, \url{https://pirsa.org}}
          }

Valerie Domcke

European Organization for Nuclear Research (CERN)

Talk number
PIRSA:21060001
Collection
Talk Type
Subject
Abstract

Cosmic strings arise as remnants of phase transitions in the early Universe, often related to theories of grand unification (GUTs). If such a phase transitions occurs at high energies, the resulting cosmic string network generates a sizable amount of gravitational waves. Most work so far has focused on the gravitational wave signal from topologically stable cosmic strings. In this talk I will introduce metastable cosmic strings, which are a generic consequence of many GUTs. I will discuss how this idea can be probed in various ongoing and upcoming gravitational wave experiments, from pulsar timing arrays to space- and ground-based interferometers. In the final part of my talk I will discuss a recent proposal on using the radio telescopes to probe this and other sources of ultra high frequency gravitational waves.