Quantum-liquid TQFTs as complete invariants of bordisms

Let ff and gg be nn-morphisms in the oriented bordism category Bordnor\mathbf{Bord}^{\mathrm{or}}_n. Completeness conjecture. If ff and gg are not equivalent, then there exists a symmetric monoidal functor

Z:BordnorQLsknZ:\mathbf{Bord}^{\mathrm{or}}_n\to\mathcal{QL}_{\mathrm{sk}}^n

such that Z(f)Z(f) and Z(g)Z(g) are not isometric in QLskn\mathcal{QL}_{\mathrm{sk}}^n. This asserts that oriented extended TQFTs arising from quantum liquids separate nonequivalent bordisms and therefore provide a complete invariant for the topological information of compact smooth nn-manifolds; the source gives no resolution.

Sources & referencesView supporting material

Primary source

Liang Kong and Hao Zheng, “Categories of quantum liquids I”, arXiv:2011.02859 (2023).

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