Chiral Algebras, Localization and Surface Defects
High Energy Physics - Theory
2018-04-04 v2
Abstract
Four-dimensional N = 2 superconformal quantum field theories contain a subsector carrying the structure of a chiral algebra. Using localization techniques, we show for the free hypermultiplet that this structure can be accessed directly from the path integral on the four-sphere. We extend the localization computation to include supersymmetric surface defects described by a generic 4d/2d coupled system. The presence of a defect corresponds to considering a module of the chiral algebra: our results provide a calculational window into its structure constants.
Cite
@article{arxiv.1710.04306,
title = {Chiral Algebras, Localization and Surface Defects},
author = {Yiwen Pan and Wolfger Peelaers},
journal= {arXiv preprint arXiv:1710.04306},
year = {2018}
}
Comments
47 pages; minor typos corrected