Seminar series
Date
Mon, 03 Nov 2014
Time
12:00 -
13:00
Location
L5
Speaker
Heng- Yu Chen
Organisation
National Taiwan University and Cambridge
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.