Non-Invertible Higher-Categorical Symmetries


Schafer-Nameki, S. (2022). Non-Invertible Higher-Categorical Symmetries. Perimeter Institute. https://pirsa.org/22060019


Schafer-Nameki, Sakura. Non-Invertible Higher-Categorical Symmetries. Perimeter Institute, Jun. 10, 2022, https://pirsa.org/22060019


          @misc{ pirsa_22060019,
            doi = {10.48660/22060019},
            url = {https://pirsa.org/22060019},
            author = {Schafer-Nameki, Sakura},
            keywords = {Mathematical physics},
            language = {en},
            title = {Non-Invertible Higher-Categorical Symmetries},
            publisher = {Perimeter Institute},
            year = {2022},
            month = {jun},
            note = {PIRSA:22060019 see, \url{https://pirsa.org}}

Sakura Schafer-Nameki University of Oxford


"I will discuss a proposal for generating non-invertible symmetries in QFTs in d>2, by gauging outer automorphisms. First this will be illustrated in 3d, where the framework is relatively well established, and then extended to higher dimensions. For 4d gauge theories, a comparison to other approaches to non-invertible symmetries is provided, in particular the map to gauging theories with mixed anomalies. This talk is based on work that appeared in 2204.06564 and in progress, with Lakshya Bharwaj (Oxford), Lea Bottini (Oxford) and Apoov Tiwari (Stockholm)."