paper

Supersymmetric index on T^2 x S^2 and elliptic genus

arXiv:1504.04355

Abstract

We study partition function of four-dimensional supersymmetric field theory on . By applying supersymmetry localization, we show that the partition function is given by elliptic genus of certain two-dimensional theory. As an application, we discuss a relation between 4d Seiberg duality duality and 2d triality, proposed by Gadde, Gukov and Putrov. In other examples, we identify 4d theories giving elliptic genera of K3, M-strings and E-strings. In the example of K3, we find that there are two 4d theories giving the elliptic genus of K3. This would imply new four-dimensional duality.

38+12 pages

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