HEP@VUB meeting: 12:00 - 13:00 (24 June 2021) · IIHE Indico

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

Thursday, 24 June 2021 - 12:00

Monday, 21 June 2021
Tuesday, 22 June 2021
Wednesday, 23 June 2021
Thursday, 24 June 2021

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

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