Wednesday, March 20, 2013

1303.4460 (Luis F. Alday et al.)

Surface defects, the superconformal index and q-deformed Yang-Mills    [PDF]

Luis F. Alday, Mathew Bullimore, Martin Fluder, Lotte Hollands
Recently a prescription to compute the four-dimensional N = 2 superconformal index in the presence of certain BPS surface defects has been given. These surface defects are labelled by symmetric representations of SU(N). In the present paper we give a prescription to compute the superconformal index in the presence of surface defects labelled by arbitrary representations of SU(N). Furthermore, we extend the dictionary between the N = 2 superconformal Schur-index and correlators of q-deformed Yang-Mills to incorporate such surface defects.
View original: http://arxiv.org/abs/1303.4460

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