A bstract We propose a new program for computing a certain integrand of scattering
amplitudes of four-dimensional gauge theories which we call the form factor integrand …

A bstract We study features of celestial CFT correlation functions when the bulk theory is
itself a CFT. We show that conformal inversions in the bulk map boost eigenstates to shadow …

A bstract We initiate the study of how the insertion of magnetically charged states in 4d self-
dual gauge theories impacts the 2d chiral algebras supported on the celestial sphere at …

The stable envelopes of Okounkov et al. realize some representations of quantum algebras
associated to quivers, using geometry. We relate these geometric considerations to quantum …

Abstract By studying Rozansky-Witten theory with non-compact target spaces we find new
connections with knot invariants whose physical interpretation was not known. This opens …

A bstract We determine the mathematical structures which govern the Ω deformation of
supersymmetric intersections of M2 and M5 branes. We find that the supersymmetric …

A bstract We revisit the factorisation of supersymmetric partition functions of 3d\(\mathcal
{N}\)= 4 gauge theories. The building blocks are hemisphere partition functions of a class of …

A bstract We study a class of universal Feynman integrals which appear in four-dimensional
holomorphic theories. We recast the integrals as the Fourier transform of a certain polytope …

We start with the SCFT/VOA correspondence formulated in the Omega-background
approach, and connect it to the boundary VOA in 3d $\mathcal {N}= 4$ theories and chiral …

What follows is a broad-brush overview of the recent synergistic interactions between
mathematics and theoretical physics of quantum field theory and string theory. The …