title: Four dimensional superconformal index from q-deformed two dimensional Yang-Mills theory.
abstract: We show that the superconformal index (the partition function on the three-sphere times a circle) of a certain class of 4D supersymmetric field theories is exactly equal to a partition function of q-deformed nonsupersymmetric 2D Yang-Mills theory.
authors.affiliation: C N Yang Institute for Theoretical Physics, Stony Brook University, Stony Brook, New York 11794, USA.
authors.forename: Abhijit
authors.initials: A
authors.lastname: Gadde
authors.forename: Leonardo
authors.initials: L
authors.lastname: Rastelli
authors.forename: Shlomo S
authors.initials: SS
authors.lastname: Razamat
authors.forename: Wenbin
authors.initials: W
authors.lastname: Yan