For arbitrary gauge groups, we check at the one-instanton level that the Nekrasov partition function of pure N = 2 super Yang-Mills is equal to the norm of a certain coherent state of the corresponding W-algebra. For non-simply-laced gauge groups, we confirm in particular that the coherent state is in the twisted sector of a simply-laced W-algebra. © SISSA 2012.
CITATION STYLE
Keller, C. A., Mekareey, N., Song, J., & Tachikawa, Y. (2012). The ABCDEFG of instantons and W-algebras. Journal of High Energy Physics, 2012(3). https://doi.org/10.1007/JHEP03(2012)045
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