Misc,

Asymptotic properties of the quantum representations of the modular group

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(2010)cite arxiv:1005.3447 Comment: 38 pages.

Abstract

We study the asymptotic behaviour of the quantum representations of the modular group in the large level limit. We prove that each element of the modular group acts as a Fourier integral operator. This provides a link between the classical and quantum Chern-Simons theories for the torus. From this result we deduce the known asymptotic expansion of the Witten-Reshetikhin-Turaev invariants of the torus bundles with hyperbolic monodromy.

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