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SUMMARY:HECAP Seminar by Veronica Sacchi - A study of scalar QED in de Sit
 ter space
DTSTART;VALUE=DATE-TIME:20260609T140000Z
DTEND;VALUE=DATE-TIME:20260609T150000Z
DTSTAMP;VALUE=DATE-TIME:20260613T163012Z
UID:indico-event-11367@ictp.it
DESCRIPTION:Abstract:\n\n	In this talk I present a study of scalar QED in 
 (3+1)-dimensional de Sitter space. Building on recent technical advances i
 n QFT on Anti–de Sitter space\, we propose gauge‑invariant observables
  in de Sitter and compute them explicitly in perturbation theory\, up  to
  one loop order. Along the way I will explain the analytic continuation to
  Euclidean AdS and time-permitting review a few interesting AdS phenomena 
 for scalar QED with unusual boundary conditions. Back to dS\, I will discu
 ss a Debye‑screening–like effect in a cosmological setting.\n\n	Link t
 o Zoom registrationhttps://zoom.us/meeting/register/A02wEI6WSdO9SBbA5FdJ7w
 \n\n//indico.ictp.it/event/11367/
LOCATION:Hybdrid Leonardo Building - Euler Lecture Hall and via Zoom
URL://indico.ictp.it/event/11367/
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