nLab Turaev-Viro model



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The Turaev-Viro model, or more precisely Turaev-Viro-Barrett-Westbury model, is a 3d TQFT construction induced from a spherical category/fusion category 𝒞\mathcal{C}.

If 𝒞\mathcal{C} is moreover a modular tensor category then there exists also the Reshetikhin-Turaev construction 3d TQFT. In this case the Turaev-Viro model is something like the “norm square” of the Reshetikhin-Turaev construction on 𝒞\mathcal{C}.

For GG a finite group and 𝒞=Vect G\mathcal{C} = Vect_G the category of GG-graded vector spaces the Turaev-Viro model describes the GG-Dijkgraaf-Witten theory, also the Levin-Wen model.

See for instance the introduction of (Kirillov-Balsam 10) for a review.


As an extended TQFT

The Turaev-Viro model has been constructed as a 3-2-1 extended TQFT in (Kirillov-Balsam 10, Balsam 10a, Balsam 10b).

Related but different is the construction of fully extended 3d TQFT from fusion categories via the cobordism theorem, see at fusion category – Relation to extended 3d TQFT for more on this.


The original articles

  • Vladimir Turaev and O. Ya. Viro, State sum invariants of 3-manifolds and quantum 6jsymbols, Topology 31 (1992), no. 4, 865–902, DOI 10.1016/0040-9383(92)90015-A. MR1191386

  • Vladimir Turaev, Quantum invariants of knots and 3-manifolds, de Gruyter Studies in Mathematics 18 Walter de Gruyter & Co., Berlin, 1994 (doi:10.1515/9783110435221)

constructed 3-manifold invariants from quantum 6j symbols. See also

  • Adrian Ocneanu, Chirality for operator algebras, In Subfactors (Kyuzeso, 1993), pp. 39-63. World Sci. Publ., River Edge, NJ, 1994


it was shown that this construction proceeds from any spherical fusion category.

Relation to the Crane-Yetter model:

Refinement of the construction to an extended TQFT is in

Discussion that relates the quantization of 3d Chern-Simons theory to the Reshetikhin-Turaev construction of a 3d-TQFT from the modular tensor category induced by GG is in

and references cited there.

A relation to the Levin-Wen model is discussed in

  • Alexander Kirillov Jr, String-net model of Turaev-Viro invariants (arXiv:1106.6033)

Discussion of the Ising model 2d CFT as a boundary theory to a 3d TQFT based on the Turaev-Viro model, similar to the CS-WZW correspondence, and the phenomenon of Kramers-Wannier duality, is in:

Last revised on October 27, 2021 at 00:10:35. See the history of this page for a list of all contributions to it.