Giant gravitons in twisted holography

We study correlation functions of determinant-like operators in the “chiral algebra subsector” of four-dimensional N$$ \mathcal{N} $$ = 4 gauge theory with U(N) gauge group. We map the large N saddles of the correlation functions to specific semiclassical D-branes in the holographic dual BCOV theory. We present a detailed match of several gauge-theory and BCOV calculations.