Description
Twisted holography relates the 2d chiral algebra subsector of N=4 SYM to the B-model topological string theory on the deformed conifold SL(2,C). Operators of order N in the chiral algebra insert Giant Graviton branes in the dual geometry. In this talk, I will present a match between the large N saddles of determinant correlation functions with semiclassical D-brane configurations in the dual theory, using a spectral curve construction. The match can be extended to saddles in non-trivial Coulomb branch vacua. The talk is based on work in collaboration with Davide Gaiotto.
