Stringy Kähler Moduli for the Pfaffian–Grassmannian Correspondence

The Pfaffian–Grassmannian correspondence relates certain pairs of derived equivalent non-birational Calabi–Yau 3-folds. Given such a pair, I construct a set of derived equivalences corresponding to mutations of an exceptional collection on the relevant Grassmannian, and give a mirror symmetry interpretation, following a physical analysis of Eager, Hori, Knapp, and Romo.