The authors introduce a 'simplex tensor network' RG algorithm for 3D symmetric boundary theories of 3+1D Dijkgraaf-Witten symTFTs and use it to numerically map the Z2 phase diagram, including the 3D Ising transition.
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Simplex tensor network renormalization group for boundary theory of 3+1D symTFT
The authors introduce a 'simplex tensor network' RG algorithm for 3D symmetric boundary theories of 3+1D Dijkgraaf-Witten symTFTs and use it to numerically map the Z2 phase diagram, including the 3D Ising transition.