The schedule for this Journal Club on String Theory will be as follows:
1) The latest news in the world of strings
Please bring recent papers that caught your attention and briefly summarize motivations, methods and results.
2) "S-duality and 2d Topological QFT"
discussion led by Can Kozcaz
Abstract: In the recent work of Gadde et. al. the superconformal index introduced by Kinney et. al. is used to connect the generalized S-duality transformation of N=2 superconformal 4d gauge theories to 2d topological field theories. The invariance under these S-duality transformations is manifested as the associativity of the operator algebra of the topological theory. In this talk, the argument by Gadde et. al. is presented.
References (arXiv): 0910.2225, hep-th/05102515
Hope to see you all!!
Pablo Cámara, Ioannis Papadimitriou and Sara Pasquetti