Speaker
Description
The discovery of gravitational waves by the LIGO-Virgo collaboration was a watershed moment for fundamental physics. Now, with the hint gravitational waves from pulsar timing arrays, and with the anticipated LISA experiment on the horizon, particle physics, too, turns to studying these waves. Nevertheless, a link between gravitational-waves and fundamental physics can not be formed without understanding the dynamics of hot field-theories in detail. In this talk I will discuss recent progress in describing quantum fields at high temperatures in the early Universe. In particular I will discuss how effective-field theory techniques can be used to calculate gravitational-wave production from phase transition, and how dissipative effects can be included in curved backgrounds.
