We will motivate and introduce the study of conformal defects in superconformal field theories (SCFTs). We will show how symmetries constrain the anomaly coefficients of BPS defects. In the case of N=(2,2) surface defects in four-dimensional N=2 SCFTs these anomaly coefficients can be computed by studying a protected subsector captured by a two-dimensional chiral algebra.
Friday, March 19, 2021 - 12:45
Surface defects in four-dimensional superconformal theories