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Gapped boundary theories for 3d Chern-Simons



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Recording Details

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PIRSA Number: 
19090100

Abstract

I will discuss a theorem, joint work in progress with Constantin Teleman, in which we characterize which topological 3-dimensional Chern-Simons theories admit nonzero boundary theories.  Accepting some physical heuristics, it tells which gapped systems in 2+1 dimensions admit only gapless boundary systems.