Remote Nordic HET seminar: Madalena Lemos

Speaker: Madalena Lemos

Title: Surface defects in four-dimensional superconformal theories and chiral algebras

Abstract: We study BPS surface defects in 4d superconformal field theories and show how symmetries constrain their anomaly coefficients. Focusing on N=(2,2) surface defects we review the protected subsector captured by a two-dimensional chiral algebra. We study the properties of the defect in this subsector and discuss how to compute the aforementioned anomaly coefficients.

Zoom link: https://stockholmuniversity.zoom.us/j/517847975