Surface observables in gauge theories, modular Painlevé tau functions and non-perturbative topological strings

Giulio Bonelli, Pavlo Gavrylenko, Ideal Majtara +1

We study BPS surface observables of $\mathcal{N}=2$ four dimensional $SU(2)$ gauge theory in gravitational $\hat{I}\text{c◯}$-background at perturbative and at Argyres-Douglas superconformal fix…