Resurgent Analysis of SU(2) Chern-Simons Partition Function on Brieskorn Spheres $\Sigma(2,3,6n+5)$

TL;DR

This paper extends the resurgent analysis of $\,\hat{Z}$-invariants, which relate to SU(2) Chern-Simons partition functions, to a new family of Brieskorn spheres, providing formulas for non-perturbative contributions.

Contribution

It generalizes the resurgent analysis of $\,\hat{Z}$-invariants to $\,\Sigma(2,3,6n+5)$ Brieskorn spheres, offering explicit formulas for their non-perturbative contributions.

Findings

Derived explicit formulas for $\,\hat{Z}$ on $\,\Sigma(2,3,6n+5)$

Extended resurgent analysis to new class of Brieskorn spheres

Provided computational tools for analytic continuation of Chern-Simons invariants

Abstract

$\hat{Z}$-invariants, which can reconstruct the analytic continuation of the SU(2) Chern-Simons partition functions via Borel resummation, were discovered by GPV and have been conjectured to be a new homological invariant of 3-manifolds which can shed light onto the superconformal and topologically twisted index of 3d $\mathcal{N}=2$ theories proposed by GPPV. In particular, the resurgent analysis of $\hat{Z}$ has been fruitful in discovering analytic properties of the WRT invariants. The resurgent analysis of these $\hat{Z}$-invariants has been performed for the cases of $\Sigma(2,3,5),\ \Sigma(2,3,7)$ by GMP, $\Sigma(2,5,7)$ by Chun, and, more recently, some additional Seifert manifolds by Chung and Kucharski, independently. In this paper, we extend and generalize the resurgent analysis of $\hat{Z}$ on a family of Brieskorn homology spheres $\Sigma(2,3,6n+5)$ where $n\in\mathbb{Z}_+$ and $6n+5$ is a prime. By deriving $\hat{Z}$ for $\Sigma(2,3,6n+5)$ according to GPPV and Hikami, we provide a formula where one can quickly compute the non-perturbative contributions to the full analytic continuation of SU(2) Chern-Simons partition function.