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Gauging Categorical Symmetries in 3d Topological Orders and Bulk Reconstruction
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abstract
We use the language of categorical condensation to give a procedure for gauging nonabelian anyons, which are the manifestations of categorical symmetries in three spacetime dimensions. We also describe how the condensation procedure can be used in other contexts such as for topological cosets and constructing modular invariants. By studying a generalization of which anyons are condensable, we arrive at representations of congruence subgroups of the modular group. We finally present an analysis for ungauging anyons, which is related to the problem of constructing a Drinfeld center for a fusion category; this procedure we refer to as bulk reconstruction. We introduce a set of consistency relations regarding lines in the parent theory and wall category. Through use of these relations along with the $S$-matrix elements of the child theory, we construct $S$-matrix elements of a parent theory in a number of examples.
Forward citations
Cited by 2 Pith papers
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Proliferation transitions from a topological phase in $2+1$ dimensions
A general 2+1d transition theory out of a topological phase, driven by one Abelian anyon, is constructed and shown to depend on a single integer parameter, with p=0 giving gauging.
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Half dualization and non-invertible particle-vortex duality defect on lattice
Half dualization of the Villainized charge-n XY model produces a non-invertible particle-vortex duality defect whose fusion with its reverse yields a (1+1)D Z_n gauge theory.
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