# Tensor network approach to electromagnetic duality in (3+1)d topological gauge models

@article{Delcamp2022TensorNA, title={Tensor network approach to electromagnetic duality in (3+1)d topological gauge models}, author={Clement Delcamp}, journal={Journal of High Energy Physics}, year={2022} }

Abstract
Given the Hamiltonian realisation of a topological (3+1)d gauge theory with finite group G, we consider a family of tensor network representations of its ground state subspace. This family is indexed by gapped boundary conditions encoded into module 2-categories over the input spherical fusion 2-category. Individual tensors are characterised by symmetry conditions with respect to non-local operators acting on entanglement degrees of freedom. In the case of Dirichlet and Neumann…

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