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X-WR-CALDESC:Events for Instituto de Física Teórica
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DTSTART;TZID=Europe/Madrid:20251023T120000
DTEND;TZID=Europe/Madrid:20251023T130000
DTSTAMP:20260406T010451
CREATED:20251020T062308Z
LAST-MODIFIED:20251125T081103Z
UID:23380-1761220800-1761224400@www.ift.uam-csic.es
SUMMARY:SPS Journal Club: Inflationary Particle Production and the Swampland
DESCRIPTION:Speaker: Joaquin Masias (Munich\, Max Planck Institute) \nVenue&Time: Red Room / 12:00 PM \nAbstract: TBA
URL:https://www.ift.uam-csic.es/event/sps-journal-club-inflationary-particle-production-and-the-swampland/
LOCATION:IFT Seminar Room/Red Room\, Instituto de Física Teórica (IFT) -C. Nicolás Cabrera\, 13-15\, Fuencarral-El Pardo\, Madrid\, 28049\,\, Spain
CATEGORIES:Journal clubs,Scientific activities
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DTSTART;TZID=Europe/Madrid:20251023T150000
DTEND;TZID=Europe/Madrid:20251023T160000
DTSTAMP:20260406T010451
CREATED:20251008T091234Z
LAST-MODIFIED:20251125T081103Z
UID:23267-1761231600-1761235200@www.ift.uam-csic.es
SUMMARY:Bubble wall dynamics from nonequilibrium quantum field theory
DESCRIPTION:Speaker: Matthias Carosi from Munich\, Tech. U.\n\n\n\n\n\n\n\n\nVenue & Time: Red Room / 15:00\n\nAbstract:\n\n\n\nFirst-order phase transitions in the early universe are a unique probe of physics beyond the Standard Model\, with potential implications for electroweak baryogenesis\, the formation of primordial black holes\, magnetogenesis and the production of dark matter. Upcoming gravitational wave detectors may capture the imprint of such transitions\, but to extract theoretical insights from these signals requires a precise understanding of the underlyingdynamics.\nIn this talk\, I show how the language of nonequilibrium quantum field theory\, combined with the two-particle-irreducible effective action\, provides anatural framework for describing the dynamics of a bubble after nucleation. After a brief introduction to the closed-time-path formalism\, I derive the dynamical equations governing the bubble and the plasma\, and identify all sources of friction for thebubble expansion. This framework unifies the pre-existing approaches within a single\, consistent description. In the ultrarelativistic regime\, I demonstrate how to compute the friction induced by the pair production of heavy scalar particles and outline the contributions of particle mixing andtransition radiation.
URL:https://www.ift.uam-csic.es/event/seminar-by-matthias-carosi/
LOCATION:IFT Seminar Room/Red Room\, Instituto de Física Teórica (IFT) -C. Nicolás Cabrera\, 13-15\, Fuencarral-El Pardo\, Madrid\, 28049\,\, Spain
CATEGORIES:Journal clubs,Scientific activities
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