HEP@VUB meeting: 12:00 - 13:00

Thursday 24 Jun 2021, 12:00 → 13:00 Europe/Brussels

Invited Speaker: Mairi Sakellariadou (King's College London & VUB)

The seminar will be done remotely through the platform ZOOM.

Topic: HEP@VUB meeting
Time: Jun 24, 2021 12:00 PM Brussels

Join Zoom Meeting
https://zoom.us/j/91792183415?pwd=MDBwNjdVYTZnaE9rcWU5Qk9jbE9Sdz09

Meeting ID: 917 9218 3415
Passcode: 0earxU

12:00 → 12:45 Hunting for the stochastic gravitational-wave background: implications for astrophysics, high energy physics, and theories of gravity

I will first define the stochastic gravitational-wave background (SGWB) and highlight the method we are using to detect it in the presence of correlated magnetic noise. I will then discuss astrophysical (compact binary coalescences) and cosmological (cosmic strings, first-order phase transitions) sources and report on the current constraints imposed from a non-detection during the last observing run of the LIGO/Virgo/KAGRA collaboration. I will also address the question of a simultaneous estimation of astrophysical and cosmological SGWB. Then I will present a search for circularly polarised SGWB and its relation to early universe cosmology. Finally, I will discuss how the SGWB can provide tests for gravity theories, including quantum gravity proposals.