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SUMMARY:Nat Levine (ENS\, Paris\, IPM)
DTSTART:20231129T150000Z
DTEND:20231129T160000Z
DTSTAMP:20260423T021140Z
UID:AnLy/33
DESCRIPTION:Title: <a href="https://researchseminars.org/talk/AnLy/33/">Eq
 uivalence of 1-loop RG flows in 4d Chern-Simons and integrable 2d sigma-mo
 dels</a>\nby Nat Levine (ENS\, Paris\, IPM) as part of AnLy Strings and Fi
 elds online seminars\n\n\nAbstract\nCostello\, Witten and Yamazaki propose
 d a 4d Chern-Simons theory as a unified way to engineer integrable models.
  In the presence of 'Disorder' defects (for non-ultralocal 2d theories)\, 
 this correspondence has been established only classically. As a first quan
 tum check\, I will derive the matching of 1-loop divergences between the 4
 d and 2d theories. This study will uncover a simple\, 'universal' structur
 e for the divergences in the 2d theory. My assumptions are general and see
 m to isolate sigma-models among the 2d theories.  (Based on 2309.16753)\n
LOCATION:https://researchseminars.org/talk/AnLy/33/
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