Reshetikhin–Turaev comparison conjecture for modular tensor categories

Let C\mathcal{C} be a modular tensor category. Let (A,q)(\mathcal{A},q) be an isomorphism between Vect\mathrm{Vect} and C\mathcal{C} in Braid{\rm Braid}^{\otimes}, equivalently an equivalence

q ⁣:CZ(A).q\colon\mathcal{C}\to\mathcal{Z}(\mathcal{A}).

The boundary condition (A,q)(\mathcal{A},q) determines an anomalous fully extended 3-dimensional theory Z(A,q)Z^{(\mathcal{A},q)}, while ZCRTZ^{\rm RT}_{\mathcal{C}} denotes the anomalous 3-dimensional Reshetikhin–Turaev theory associated with C\mathcal{C}. Reshetikhin–Turaev comparison conjecture. Any such (A,q)(\mathcal{A},q) induces a natural equivalence

ZCRTΩ(Z(A,q)).Z^{\rm RT}_{\mathcal{C}}\simeq\Omega({Z^{(\mathcal{A},q)}}).

The claim proposes that the Reshetikhin–Turaev theory is obtained by applying the loop operator to the anomalous theory arising from the corresponding boundary condition. The supplied text presents this as a tempting conjecture and gives no resolution.

Sources & referencesView supporting material

Primary source

Domenico Fiorenza and Alessandro Valentino, “Boundary Conditions for Topological Quantum Field Theories, Anomalies and Projective Modular Functors”, arXiv:1409.5723 (2015).

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