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PIRSA:19090100

Gapped boundary theories for 3d Chern-Simons

APA

Freed, D. (2019). Gapped boundary theories for 3d Chern-Simons. Perimeter Institute for Theoretical Physics. https://pirsa.org/19090100

Dan Freed Harvard University

Talk numberPIRSA:19090100
Source RepositoryPIRSA

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.