Surface operators in the 6d N = (2, 0) theory

@article{Drukker2020SurfaceOI,
  title={Surface operators in the 6d N = (2, 0) theory},
  author={Nadav Drukker and Malte Probst and Maxime Tr'epanier},
  journal={Journal of Physics A: Mathematical and Theoretical},
  year={2020},
  volume={53}
}
The 6d N = ( 2 , 0 ) theory has natural surface operator observables, which are akin in many ways to Wilson loops in gauge theories. We propose a definition of a ‘locally BPS’ surface operator and study its conformal anomalies, the analog of the conformal dimension of local operators. We study the abelian theory and the holographic dual of the large N theory refining previously used techniques. Introducing non-constant couplings to the scalar fields allows for an extra anomaly coefficient… 
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Surface operators are among the most important observables of the 6d N $$ \mathcal{N} $$ = (2 , 0) theory. Here we apply the tools of defect CFT to study local operator insertions into the 1 / 2-BPS…
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