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SUMMARY:Aleksandr Chatrchyan\, Vacuum decay induced by cosmic strings
DTSTART:20260323T123000Z
DTEND:20260323T140000Z
DTSTAMP:20260807T122600Z
UID:indico-event-9628@indico.fysik.su.se
DESCRIPTION:False vacuum decay in quantum field theory typically proceeds 
 via the nucleation of spherical bubbles of true vacuum\, described by O(4)
  symmetric field configurations in Euclidean time. In this work\, we inves
 tigate how the presence of cosmic strings affects the decay process. We co
 nsider a complex scalar field charged under a U(1) symmetry\, with a non-t
 rivial vacuum manifold\, realizable for example in a simple sextic potenti
 al. Building up on earlier results in the literature\, we derive relativis
 tic bounce solutions with O(2)×O(2) symmetry in the thin-wall limit. We f
 urther discuss the evolution and possible observational signatures of thes
 e string-seeded\, nonspherical bubbles.\n\nhttps://indico.fysik.su.se/even
 t/9628/
LOCATION:Albano 3: 6228 - Mega (22 seats) (Albano Building 3)
URL:https://indico.fysik.su.se/event/9628/
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