Andersen's asymptotic expansion conjecture for Reshetikhin–Turaev invariants

For an oriented compact three-manifold XX, let GG be a semisimple, simply connected Lie group, and let ZG(K)(X)\mathcal{Z}_G^{(K)}(X) denote the Reshetikhin–Turaev TQFT invariant at level KK. Let q0=0,q1,,qnq_0=0,q_1,\dots,q_n be the finitely many distinct values of the Chern–Simons functional on the space of flat GG-connections on XX. Andersen's asymptotic expansion conjecture. There exist constants dj,rQd_{j,r}\in\mathbb{Q} and bj,rCb_{j,r}\in\mathbb{C} for r=1,,ujr=1,\dots,u_j and j=0,1,,nj=0,1,\dots,n, and aj,rlCa_{j,r}^l\in\mathbb{C} for j=0,1,,nj=0,1,\dots,n and l=1,2,l=1,2,\dots, such that, as KK\to\infty,

ZG(K)(X)j=0ne2πiKqjr=1ujKdj,rbj,r(1+l=1aj,rlKl).\mathcal{Z}_G^{(K)}(X)\sim\sum_{j=0}^n e^{2\pi iKq_j}\sum_{r=1}^{u_j}K^{d_{j,r}}b_{j,r}\left(1+\sum_{l=1}^\infty a_{j,r}^lK^{-l}\right).

The conjecture describes the large-level asymptotics of quantum invariants as a finite sum of contributions indexed by Chern–Simons values of flat connections. The source states that the displayed expansion is solved explicitly for the G=SL(2,C)G=\operatorname{SL}(2,\mathbb{C}) version in the setting under discussion; the general statement for semisimple, simply connected GG is not resolved here.

Sources & referencesView supporting material

Primary source

Toshiki Matsusaka and Yuji Terashima, “Modular transformations of homological blocks for Seifert fibered homology 3-spheres”, arXiv:2112.06210 (2023).

Additional references

5 papers in this index state this conjecture (2002–2021). The statement above is taken from the most recent of them; the others are arXiv:math/0510549, arXiv:math/0506456, arXiv:math/0210011, arXiv:math/0209403.

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