Holographic gauge theories in background fields and surface operators

  title={Holographic gauge theories in background fields and surface operators},
  author={Evgeny I. Buchbinder and Jaume Gomis and Filippo Passerini},
  journal={Journal of High Energy Physics},
We construct a new class of supersymmetric surface operators in N = 4 SYM and find the corresponding dual supergravity solutions. We show that the insertion of the surface operator — which is given by a WZW model supported on the surface — appears by integrating out the localized degrees of freedom along the surface which arise microscopically from a D3/D7 brane intersection. Consistency requires constructing N = 4 SYM in the D7 supergravity background and not in flat space. This enlarges the… 
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