| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 10725698 | Physics Letters B | 2010 | 5 Pages |
Abstract
We propose some arguments supporting an M-theory derivation of the duality recently discovered by Alday, Gaiotto and Tachikawa between two-dimensional conformal field theories and N=2 superconformal gauge theories in four dimensions. We find that ANâ1 Toda field theory is the simplest two-dimensional conformal field theory quantizing the moduli of N M5-branes wrapped on a Riemann surface. This leads us to identify chiral operators of the N=2 gauge theories with integrated W-algebra currents. As a check of this correspondence we study some relevant OPE's obtaining that Nekrasov's partition function satisfies W-geometry constraints.
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Authors
Giulio Bonelli, Alessandro Tanzini,