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A gauge theory generalization of the fermion-doubling theorem



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Recording Details

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PIRSA Number: 
13050050

Abstract

This talk is about obstructions to symmetry-preserving regulators of quantum field theories in 3+1 dimensions.  New examples of such obstructions can be found using the fact that  4+1-dimensional SPT states are characterized by their edge states.
(Based on work in progress with S.M. Kravec.)