Infinite Chiral Symmetry in Four Dimensions
arXiv:1312.5344 · doi:10.1007/s00220-014-2272-x
Abstract
We describe a new correspondence between four-dimensional conformal field theories with extended supersymmetry and two-dimensional chiral algebras. The meromorphic correlators of the chiral algebra compute correlators in a protected sector of the four-dimensional theory. Infinite chiral symmetry has far-reaching consequences for the spectral data, correlation functions, and central charges of any four-dimensional theory with ${\mathcal N}=2$ superconformal symmetry.
75 pages. v3: minor corrections. Final version -- published in Communications in Mathematical Physics