A geometric dual of cc-extremization

Oct 25, 2018
67 pages
Published in:
  • JHEP 01 (2019) 212
  • Published: Jan 29, 2019
e-Print:
Report number:
  • Imperial/TP/2018/JG/03

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Abstract: (Springer)
We consider supersymmetric AdS3_{3} × Y7_{7} and AdS2_{2} × Y9_{9} solutions of type IIB and D = 11 supergravity, respectively, that are holographically dual to SCFTs with (0, 2) supersymmetry in two dimensions and N \mathcal{N} = 2 supersymmetry in one dimension. The geometry of Y_{2n}_{+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_{3} × Y7_{7} 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_{2} × Y9_{9} 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_{4}. We also study many specific examples of the type AdS3_{3} × T2^{2} × Y5_{5}, 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^{2} of certain d = 4 quiver gauge theories associated with five-dimensional Sasaki-Einstein metrics and, surprisingly, come to a negative conclusion.
Note:
  • 67 pages. Minor changes, published version
  • AdS-CFT Correspondence
  • Differential and Algebraic Geometry
  • Supersymmetric Gauge Theory
  • Black Holes in String Theory
  • vector: Killing
  • dimension: 2
  • supergravity: solution
  • duality: holography
  • dimension: 1
  • gauge field theory: quiver