Results 31 to 40 of about 1,460 (82)

(3+1)-dimensional topological phases and self-dual quantum geometries encoded on Heegard surfaces

open access: yes, 2017
We apply the recently suggested strategy to lift state spaces and operators for (2+1)-dimensional topological quantum field theories to state spaces and operators for a (3+1)-dimensional TQFT with defects.
Dittrich, Bianca
core   +1 more source

Discrete structures in gravity [PDF]

open access: yes, 2000
Discrete approaches to gravity, both classical and quantum, are reviewed briefly, with emphasis on the method using piecewise-linear spaces. Models of 3-dimensional quantum gravity involving 6j-symbols are then described, and progress in generalising ...
Ambjørn J.   +54 more
core   +2 more sources

Computations of Turaev-Viro-Ocneanu Invariants of 3-Manifolds from Subfactors [PDF]

open access: yesJournal of Knot Theory and Its Ramifications, 2003
In this paper, we establish a rigorous correspondence between the two tube algebras, that one comes from the Turaev-Viro-Ocneanu TQFT introduced by Ocneanu and another comes from the sector theory introduced by Izumi, and construct a canonical isomorphism between the centers of the two tube algebras, which is a conjugate linear isomorphism preserving ...
Sato, Nobuya, Wakui, Michihisa
openaire   +3 more sources

Asymptotics of quantum 6j$6j$‐symbols and generalized hyperbolic tetrahedra

open access: yesJournal of Topology, Volume 18, Issue 3, September 2025.
Abstract We establish the geometry behind the quantum 6j$6j$‐symbols under only the admissibility conditions as in the definition of the Turaev–Viro invariants of 3‐manifolds. As a classification, we show that the 6‐tuples in the quantum 6j$6j$‐symbols give in a precise way to the dihedral angles of (1) a spherical tetrahedron, (2) a generalized ...
Giulio Belletti, Tian Yang
wiley   +1 more source

Braiding and entanglement in spin networks: a combinatorial approach to topological phases

open access: yes, 2008
The spin network quantum simulator relies on the su(2) representation ring (or its q-deformed counterpart at q= root of unity) and its basic features naturally include (multipartite) entanglement and braiding.
Kadar, Zoltan   +2 more
core   +1 more source

Compact phase space, cosmological constant, discrete time [PDF]

open access: yes, 2015
We study the quantization of geometry in the presence of a cosmological constant, using a discretiza- tion with constant-curvature simplices. Phase space turns out to be compact and the Hilbert space finite dimensional for each link.
Rovelli, Carlo, Vidotto, Francesca
core   +4 more sources

Asymptotic Behavior of Colored Jones polynomial and Turaev-Viro Invariant of figure eight knot

open access: yes, 2020
In this paper we investigate the asymptotic behavior of the colored Jones polynomials and the Turaev-Viro invariants for the figure eight knot. More precisely, we consider the $M$-th colored Jones polynomials evaluated at $(N+1/2)$-th root of unity with ...
Au, Thomas Kwok-Keung, Wong, Ka Ho
core  

Topological invariants from non-restricted quantum groups

open access: yes, 2013
We introduce the notion of a relative spherical category. We prove that such a category gives rise to the generalized Kashaev and Turaev-Viro-type 3-manifold invariants defined in arXiv:1008.3103 and arXiv:0910.1624, respectively.
Bertrand Patureau-Mirand   +6 more
core   +3 more sources

A manifestly Morita-invariant construction of Turaev–Viro invariants

open access: yesQuantum Topology
We present a state sum construction that assigns a scalar to a skeleton in a closed oriented three-dimensional manifold. The input datum is the pivotal bicategory \mathbf{Mod}^{\mathrm{sph}}(\mathcal{A}) of spherical module categories over a ...
Jürgen Fuchs   +3 more
openaire   +2 more sources

Turaev-Viro invariants as an extended TQFT

open access: yes, 2010
38 pages, many figures. New in v.3: significantly rewritten exposition, providing details of some proofs which were only outlined in the previous ...
Kirillov Jr., Alexander   +1 more
openaire   +2 more sources

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