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Non-chiral current algebras for deformed supergroup WZW models
Non-chiral current algebras deformed supergroup WZW models
2010/12/24
We study deformed WZW models on supergroups with vanishing Killing form. The deformation is generated by the isotropic current-current perturbation which is exactly marginal under these assumptions. I...
W-algebras and surface operators in N=2 gauge theories
W-algebras surface operators N=2 gauge theories
2010/12/22
A general class of W-algebras can be constructed from the affine sl(N) algebra by (quantum) Drinfeld-Sokolov reduction and are classified by partitions of N. Surface operators in an N=2 SU(N) 4d gaug...