Phase Transitions In The Early Universe
Carlos Tamarit Degenhardt (THEP, JGU Mainz)

The early universe likely underwent a series of phase transitions as it expanded and cooled from an initially hot, dense state. Among these, first-order phase transitions --proceeding through the nucleation and expansion of bubbles-- are particularly interesting due to their potential cosmological implications, which include gravitational wave production and the possibility to generate the baryon asymmetry through the mechanism of electroweak baryogenesis. In this talk I will review the theoretical framework used to study such transitions and discuss recent progress on understanding bubble velocities and CP-violating effects relevant for electroweak baryogenesis.