Wilson loops in circular quiver SCFTs at strong coupling

TL;DR

This paper analyzes circular BPS Wilson loops in $ ext{N}=2$ superconformal quiver theories at large $N$ and strong coupling, using localization to compute expectation values and proposing a conjecture for arbitrary strong couplings.

Contribution

It provides explicit calculations of Wilson loop expectation values in hierarchical and nearly equal coupling regimes and conjectures results for all strong couplings.

Findings

Expectation values computed for hierarchical couplings

Expectation values computed for nearly equal couplings

Conjecture proposed for arbitrary strong couplings

Abstract

We study circular BPS Wilson loops in the $\mathcal{N}=2$ superconformal $n$-node quiver theories at large $N$ and strong 't Hooft coupling by using localization. We compute the expectation values of Wilson loops in the limit when the 't Hooft couplings are hierarchically different and when they are nearly equal. Based on these results, we make a conjecture for arbitrary strong couplings.