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SUMMARY:(3+1)d igSPTs and obstructions to confinement - Christian Copetti\
 , Oxford
DTSTART:20241107T130000Z
DTEND:20241107T140000Z
UID:TALK220591@talks.cam.ac.uk
CONTACT:Bernardo Zan
DESCRIPTION:Symmetry is a key tool for constraining possible end-points of
  strongly-coupled RG flows. While continuous symmetries have brought forth
  a great deal of applications to gapless systems\, discrete symmetries hav
 e been most successful in constraining gapped (topological) phases of matt
 er. In this talk I will review the concept\, borrowed from condensed matte
 r\, of intrinsically gapless Symmetry Protected Topological phases (igSPTs
 ): phases of matter in which an anomaly-free UV symmetry can be realized i
 n an anomalous fashion on gapless IR degrees of freedom and explain how co
 nformal gauge theories in such phases cannot confine under any symmetry-pr
 eserving deformation. I will also briefly discuss some interesting general
 izations involving non-invertible symmetries.\n\nThe talk is based on a re
 cent work https://arxiv.org/abs/2408.05585 with Andrea Antinucci and Sakur
 a Schafer-Nameki.
LOCATION:Potter Room (B1.19)
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