A geometric dual of c-extremization

Christopher Couzens, Jerome P. Gauntlett*, Dario Martelli, James Sparks

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

39 Citations (Scopus)
151 Downloads (Pure)


We consider supersymmetric AdS3 × Y7 and AdS2 × Y9 solutions of type IIB and D = 11 supergravity, respectively, that are holographically dual to SCFTs with (0, 2) supersymmetry in two dimensions and N = 2 supersymmetry in one dimension. The geometry of Y2n+1, which can be defined for n ≥ 3, shares many similarities with Sasaki-Einstein geometry, including the existence of a canonical R-symmetry Killing vector, but there are also some crucial differences. We show that the R-symmetry Killing vector may be determined by extremizing a function that depends only on certain global, topological data. In particular, assuming it exists, for n = 3 one can compute the central charge of an AdS3 × Y7 solution without knowing its explicit form. We interpret this as a geometric dual of c-extremization in (0, 2) SCFTs. For the case of AdS2 × Y9 solutions we show that the extremal problem can be used to obtain properties of the dual quantum mechanics, including obtaining the entropy of a class of supersymmetric black holes in AdS4. We also study many specific examples of the type AdS3 × T2 × Y5, including a new family of explicit supergravity solutions. In addition we discuss the possibility that the (0, 2) SCFTs dual to these solutions can arise from the compactification on T2 of certain d = 4 quiver gauge theories associated with five-dimensional Sasaki-Einstein metrics and, surprisingly, come to a negative conclusion.

Original languageEnglish
Article number212
Number of pages54
JournalJournal of High Energy Physics
Issue number1
Publication statusPublished - 29 Jan 2019


  • AdS-CFT Correspondence
  • Black Holes in String Theory
  • Differential and Algebraic Geometry
  • Supersymmetric Gauge Theory


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