Department of Physics, NCU
Surface Defects and Dualities in Supersymmetric Gauge Theories
Prof. Heng-Yu Chen (陳恆榆)
Department of Physics, NTU
Abstract: I will begin by introducing different surface defects in 4d N=2 supersymmetric gauge theories, and discuss how the 4d supersymmetry breaking effect can descend into the 2d world volume theories of the surface defects.I will then discuss how certain surface defects can naturally appear as saddle point solutions in 4d N=1 and N=2 superconformal indices, also confirm this with explicit 2d elliptic genus calculations. I will wrap up the talk by discussing their roles in different field theoretic dualities.