Searching for surface defect CFTs within AdS3

Federico Faedo, Yolanda Lozano, Nicolò Petri

Research output: Contribution to journalArticlepeer-review

25 Scopus citations


We study AdS3×S3/ℤk×S˜3/ℤk′ solutions to M-theory preserving N = (0, 4) supersymmetries, arising as near-horizon limits of M2-M5 brane intersections ending on M5’-branes, with both types of five-branes placed on A-type singularities. Solutions in this class asymptote locally to AdS7/ℤk×S˜3/ℤk′, and can thus be interpreted as holographic duals to surface defect CFTs within the N = (1, 0) 6d CFT dual to this solution. Upon reduction to Type IIA, we obtain a new class of solutions of the form AdS3× S3/ℤk× S2×Σ2 preserving (0,4) supersymmetries. We construct explicit 2d quiver CFTs dual to these solutions, describing D2-D4 surface defects embedded within the 6d (1,0) quiver CFT dual to the AdS7/ℤk solution to massless IIA. Finally, in the massive case, we show that the recently constructed AdS3× S2× CY2 solutions with N = (0, 4) supersymmetries gain a defect interpretation as surface CFTs originating from D2-NS5-D6 defects embedded within the 5d CFT dual to the Brandhuber-Oz AdS6 background.

Original languageEnglish
Article number52
JournalJournal of High Energy Physics
Issue number11
StatePublished - 1 Nov 2020
Externally publishedYes


  • AdS-CFT Correspondence
  • Brane Dynamics in Gauge Theories

ASJC Scopus subject areas

  • Nuclear and High Energy Physics


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