PIRSA:19090100

Gapped boundary theories for 3d Chern-Simons

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

Freed, Dan. Gapped boundary theories for 3d Chern-Simons. Perimeter Institute, Sep. 19, 2019, https://pirsa.org/19090100 

          @misc{ pirsa_PIRSA:19090100,
            doi = {10.48660/19090100},
            url = {https://pirsa.org/19090100},
            author = {Freed, Dan},
            keywords = {Mathematical physics},
            language = {en},
            title = {Gapped boundary theories for 3d Chern-Simons},
            publisher = {Perimeter Institute},
            year = {2019},
            month = {sep},
            note = {PIRSA:19090100 see, \url{https://pirsa.org}}
          }

Dan Freed

Harvard University

Talk number
PIRSA:19090100
Collection
Talk Type
Subject
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.