Colloquium| Institute of Mathematical Sciences
Time：10:30-11:30, July 19, Friday
Location：Room S407, IMS
Speaker: 潘逸文Yiwen Pan, 中山大学Sun Yat-sen University
Abstract: Schur operators in any 4d N=2 superconformal field theory form a 2d vertex operator algebra (VOA). In this 4d/2d correspondence, Schur index is mapped to the torus partition function of the VOA (i.e., character of the vacuum module). In this talk I will discuss how to apply localization techniques to this 4d/2d correspondence. We will begin with a review of the correspondence and the localization argument, and then we will localize the Schur index and Schur correlation functions, and finally briefly discuss the relation between surface defects and additional solutions to modular differential equations of the Schur index.