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Universal-property conjecture for the beyond-cohomology phase
A ${\mathbb Z}_2$ symmetry flux is a topological defect associated with the global ${\mathbb Z}_2$ symmetry, and an $E_8$ state is the two-dimensional bosonic invertible phase with…
Conjectureopenbeyond-cohomology symmetry-protected-topological-phases topological-phasesarXiv posted 3 days ago

Universal-property conjecture for the beyond-cohomology phase