# Disentangling modular Walker-Wang models via fermionic invertible boundaries

@inproceedings{Bauer2022DisentanglingMW, title={Disentangling modular Walker-Wang models via fermionic invertible boundaries}, author={Andreas Bauer}, year={2022} }

Walker-Wang models are ﬁxed-point models of topological order in 3 + 1 dimensions constructed from a braided fusion category. For a modular input category M , the model itself is invertible and is believed to be in a trivial topological phase, whereas its standard boundary is supposed to represent a 2 + 1-dimensional chiral phase. In this work we explicitly show triviality of the model by constructing an invertible domain wall to vacuum as well as a disentangling local unitary circuit in the…

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