Large NN matrix models for 3d N=2{\cal N}=2 theories: twisted index, free energy and black holes

Apr 11, 2016
40 pages
Published in:
  • JHEP 08 (2016) 064
  • Published: Aug 9, 2016
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Abstract: (Springer)
We provide general formulae for the topologically twisted index of a general three-dimensional N \mathcal{N} ≥ 2 gauge theory with an M-theory or massive type IIA dual in the large N limit. The index is defined as the supersymmetric path integral of the theory on S2^{2} × S1^{1} in the presence of background magnetic fluxes for the R- and global symmetries and it is conjectured to reproduce the entropy of magnetically charged static BPS AdS4_{4} black holes. For a class of theories with an M-theory dual, we show that the logarithm of the index scales indeed as N3/2^{3/2} (and N5/3^{5/3} in the massive type IIA case). We find an intriguing relation with the (apparently unrelated) large N limit of the partition function on S3^{3}. We also provide a universal formula for extracting the index from the large N partition function on S3^{3} and its derivatives and point out its analogy with the attractor mechanism for AdS black holes.
Note:
  • 39 pages; v2: refs added; v3: typos removed
  • AdS-CFT Correspondence
  • Black Holes in String Theory
  • M-Theory
  • black hole: anti-de Sitter
  • M-theory: duality
  • partition function
  • twist
  • supersymmetry: 2
  • matrix model
  • free energy