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The witt group of non-degenerate braided fusion categories

4 Pith papers cite this work. Polarity classification is still indexing.

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abstract

We give a characterization of Drinfeld centers of fusion categories as non-degenerate braided fusion categories containing a Lagrangian algebra. Further we study the quotient of the monoid of non-degenerate braided fusion categories modulo the submonoid of the Drinfeld centers and show that its formal properties are similar to those of the classical Witt group.

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Higher Gauging and Non-invertible Condensation Defects

hep-th · 2022-04-05 · unverdicted · novelty 7.0

Higher gauging of 1-form symmetries on surfaces in 2+1d QFT yields condensation defects whose fusion rules involve 1+1d TQFTs and realizes every 0-form symmetry in TQFTs.

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