%0 Journal Article %T Emergent Geometry of KP Hierarchy. II %A Jian Zhou %J Physics %D 2015 %I arXiv %X We elaborate on a construction of quantum LG superpotential associated to a tau-function of the KP hierarchy in the case that resulting quantum spectral curve lies in the quantum two-torus. This construction is applied to Hurwitz numbers, one-legged topological vertex and resolved conifold with external D-brane to give a natural explanation of some earlier work on the relevant quantum curves. %U http://arxiv.org/abs/1512.03196v1