MS Seminar (Mathematics - String Theory)

Speaker: Jaewon Song (KIAS)
Title: Aspects of the chiral algebra in 4d N=2 SCFT
Date (JST): Tue, May 30, 2017, 13:15 - 14:30
Place: Seminar Room A
Abstract: For any 4d N=2 superconformal field theories, there is a subsector described by a chiral algebra (or vertex operator algebra). It encodes useful information about the protected sector and also gives a handle to a strongly-coupled theory. One of the consequences is that the Schur index is identical to the vacuum character of the corresponding chiral algebra. I am going to argue that other observables, such as the Macdonald index and the Lens space index can also be obtained from the chiral algebra. I will be focusing on a simple set of examples, namely the Argyres-Douglas theories to illustrate this.