paper

Large matrix models for 3d theories: twisted index, free energy and black holes

arXiv:1604.03122 · doi:10.1007/JHEP08(2016)064

Abstract

We provide general formulae for the topologically twisted index of a general three-dimensional gauge theory with an M-theory or massive type IIA dual in the large limit. The index is defined as the supersymmetric path integral of the theory on 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 AdS black holes. For a class of theories with an M-theory dual, we show that the logarithm of the index scales indeed as (and in the massive type IIA case). We find an intriguing relation with the (apparently unrelated) large limit of the partition function on . We also provide a universal formula for extracting the index from the large partition function on and its derivatives and point out its analogy with the attractor mechanism for AdS black holes.

39 pages; v2: refs added; v3: typos removed

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