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SUMMARY:Joseph Tooby-Smith (Cornell University)
DTSTART:20231121T190000Z
DTEND:20231121T205000Z
DTSTAMP:20260422T174128Z
UID:tandg/13
DESCRIPTION:Title: <a href="https://researchseminars.org/talk/tandg/13/">S
 mooth generalized symmetries of quantum field theories</a>\nby Joseph Toob
 y-Smith (Cornell University) as part of Topology and Geometry Seminar (Tex
 as\, Kansas)\n\n\nAbstract\nIn this talk\, based on joint work with Ben Gr
 ipaios and Oscar Randal-Williams (arXiv:2209.13524 and 2310.16090)\, we wi
 ll\, with help from the geometric cobordism hypothesis\, define and study 
 invertible smooth generalized symmetries of field theories within the fram
 ework of higher category theory. We will show the existence of a new type 
 of anomaly that afflicts global symmetries even before trying to gauge\, w
 e call these anomalies “smoothness anomalies”. In addition\, we will s
 ee that d-dimensional QFTs when considered collectively can have d-form sy
 mmetries\, which goes beyond the (d-1)-form symmetries known to physicists
  for individual QFTs. We will also touch on aspects of gauging global symm
 etries in the case of topological quantum field theories.\n
LOCATION:https://researchseminars.org/talk/tandg/13/
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