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SUMMARY:Xiao-Gang Wen (Massachusetts Institute of Technology)
DTSTART:20210426T160000Z
DTEND:20210426T170000Z
DTSTAMP:20260423T024649Z
UID:QM3/37
DESCRIPTION:Title: <a href="https://researchseminars.org/talk/QM3/37/">A h
 olographic view of symmetry -- symmetry as shadow of topological order</a>
 \nby Xiao-Gang Wen (Massachusetts Institute of Technology) as part of Quan
 tum Matter meets Maths (IST\, Lisbon)\n\n\nAbstract\nRecently\, the notion
  of symmetry has been extended from 0-symmetry described by group to highe
 r symmetry described by higher group. In this talk\, we show that the noti
 on of symmetry can be generalized even further to "algebraic higher symmet
 ry". Then we will describe an even more general point of view of symmetry\
 , which puts the (generalized) symmetry charges and topological excitation
  at equal footing: symmetry can be viewed as gravitational anomaly\, or sy
 mmetry can be viewed as shadow topological order in one higher dimension. 
 This picture allows us to see many duality relations between seeming unrel
 ated symmetries.\n
LOCATION:https://researchseminars.org/talk/QM3/37/
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