# Higher central charges and topological boundaries in 2+1-dimensional TQFTs

@inproceedings{Kaidi2021HigherCC, title={Higher central charges and topological boundaries in 2+1-dimensional TQFTs}, author={Justin Kaidi and Z. Komargodski and Kantaro Ohmori and Sahand Seifnashri and Shu-Heng Shao}, year={2021} }

A 2+1-dimensional topological quantum field theory (TQFT) may or may not admit topological (gapped) boundary conditions. A famous necessary, but not sufficient, condition for the existence of a topological boundary condition is that the chiral central charge c− has to vanish. In this paper, we consider conditions associated with “higher” central charges, which have been introduced recently in the math literature. In terms of these new obstructions, we identify necessary and sufficient… Expand

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