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SUMMARY:Bubble dynamics during first-order phase transitions
DTSTART:20251023T050000Z
DTEND:20251023T060000Z
DTSTAMP:20260519T223700Z
UID:indico-event-15617@indico.global
DESCRIPTION:Speakers: Carlos Tamarit (Johannes Gutenberg University of Mai
 nz)\n\nAs the early universe expanded and cooled down\, it could have unde
 rgone first-order phase transitions proceeding through the nucleation and 
 expansion of bubbles of the thermodynamically preferred phase. Such transi
 tions are particularly interesting due to their potential cosmological imp
 lications\, which include gravitational wave production and the possibilit
 y to generate the baryon asymmetry through the mechanism of electroweak ba
 ryogenesis. Both types of physical effects are very sensitive to the termi
 nal velocities that bubbles may achieve during the phase transition if the
  driving pressure is compensated by friction or backreaction effects.  In
  this talk I will cover recent progress on the calculation of bubble veloc
 ities\, emphasizing the role of hydrodynamic backreaction forces that are 
 active even in the presence of local equilibrium. Furthermore\, I will rep
 ort on ongoing improvements on the treatment of CP-violating effects at th
 e bubble's walls that are relevant for electroweak baryogenesis.\n\nhttps:
 //indico.global/event/15617/
URL:https://indico.global/event/15617/
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