Geometry & Topology
- Geom. Topol.
- Volume 17, Number 3 (2013), 1253-1315.
The quantum content of the gluing equations
The gluing equations of a cusped hyperbolic –manifold are a system of polynomial equations in the shapes of an ideal triangulation of that describe the complete hyperbolic structure of and its deformations. Given a Neumann–Zagier datum (comprising the shapes together with the gluing equations in a particular canonical form) we define a formal power series with coefficients in the invariant trace field of that should (a) agree with the asymptotic expansion of the Kashaev invariant to all orders, and (b) contain the nonabelian Reidemeister–Ray–Singer torsion of as its first subleading “–loop” term. As a case study, we prove topological invariance of the –loop part of the constructed series and extend it into a formal power series of rational functions on the character variety of . We provide a computer implementation of the first three terms of the series using the standard SnapPy toolbox and check numerically the agreement of our torsion with the Reidemeister–Ray–Singer for all hyperbolic knots with at most 14 crossings. Finally, we explain how the definition of our series follows from the quantization of –dimensional hyperbolic geometry, using principles of topological quantum field theory. Our results have a straightforward extension to any –manifold with torus boundary components (not necessarily hyperbolic) that admits a regular ideal triangulation with respect to some representation.
Geom. Topol., Volume 17, Number 3 (2013), 1253-1315.
Received: 6 March 2012
Revised: 25 October 2012
Accepted: 5 January 2013
First available in Project Euclid: 20 December 2017
Permanent link to this document
Digital Object Identifier
Mathematical Reviews number (MathSciNet)
Zentralblatt MATH identifier
volume complex Chern–Simons theory Kashaev invariant gluing equations Neumann–Zagier equations Neumann–Zagier datum hyperbolic geometry ideal triangulations $1$–loop torsion quantum dilogarithm state integral perturbation theory Feynman diagram formal Gaussian integration
Dimofte, Tudor; Garoufalidis, Stavros. The quantum content of the gluing equations. Geom. Topol. 17 (2013), no. 3, 1253--1315. doi:10.2140/gt.2013.17.1253. https://projecteuclid.org/euclid.gt/1513732608