Starting with a gentle approach to the Alday–Gaiotto–Tachikawa (AGT) correspondence
from its 6d origin, these notes provide a wide (albeit shallow) survey of the literature on …

A bstract We study the full moduli space of vacua of 6d worldvolume SCFTs on M5 branes
probing an A-type singularity, focusing on the geometric incarnation of the discrete gauging …

A bstract We define and study a class of\(\mathcal {N}\)= 2 vertex operator
algebras\({\mathcal {W}} _ {\mathrm {G}}\) labelled by complex reflection groups. They are …

Superconformal field theories (SCFTs) occupy a central role in the study of many aspects of
quantum field theory. In this white paper for the Snowmass process we give a brief overview …

A bstract We study the stratification of the singular locus of four dimensional\(\mathcal {N}\)=
2 Coulomb branches. We present a set of self-consistency conditions on this stratification …

A bstract In this paper we begin mapping out the space of rank-2\(\mathcal {N}\)= 2
superconformal field theories (SCFTs) in four dimensions. This represents an ideal set of …

We give an elementary proof of the following property of unitary, interacting four-dimensional
N= 2 superconformal field theories: At large central charge c, there exist at least c single …

A bstract We derive explicit formulae to compute the a and c central charges of four
dimensional\(\mathcal {N}\)= 2 superconformal field theories (SCFTs) directly from Coulomb …

A bstract There is a well-known map from 4d\(\mathcal {N}\)= 2 superconformal field theories
(SCFTs) to 2d vertex operator algebras (VOAs). The 4d Schur index corresponds to the VOA …

A bstract We study the four-dimensional\(\mathcal {N}\)= 2 superconformal field theories that
describe D3-branes probing the recently constructed\(\mathcal {N}\)= 2\(\mathcal {S}\)-folds …