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arXiv 2008.05960hep-thcond-mat.str-el
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Orbifold groupoids

Davide Gaiotto, Justin Kulp

英文摘要:

We review the properties of orbifold operations on two-dimensional quantum field theories, either bosonic or fermionic, and describe the "Orbifold groupoids" which control the composition of orbifold operations. Three-dimensional TQFT's of Dijkgraaf-Witten type will play an important role in the analysis. We briefly discuss the extension to generalized symmetries and applications to constrain RG flows.

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