Seminarium "Teoria cząstek elementarnych i kosmologia"

The discovery of gravitational waves and the advent of space-borne detector LISA makes early Universe cosmology, in particular electroweak symmetry breaking, experimentally testable. In this talk, I will discuss supercooled phase transitions, associated with radiative symmetry breaking, which generically source strong gravitational-wave signal. I will cover a wide range of aspects from the construction of models with radiative symmetry breaking, their renormalisation, through the construction of high-temperature effective field theories needed for accurate treatment of thermal effects to the phenomenological predictions and the prospects of probing fundamental physics models via gravitational waves.