Anisotropic scale-separated AdS4 flux vacua

Abstract

We present minimally supersymmetric AdS₄ flux vacua derived from massive type IIA compactified on T⁶/ℤ₃ × ℤ₃ orbifold, characterized by unconstrained fluxes with general scalings. We discover anisotropic scaling solutions in which scale separation is realized in the supergravity limit, and the subvolumes of the internal space become large and anisotropic in this limit. Additionally, we identify further regimes in which subvolumes either shrink or remain constant, while scale separation is either broken or realized for large values of the unconstrained fluxes. Then, we employ a probe D4-brane to interpolate between vacua, finding that it interpolates through the regimes we previously identified. Finally, we utilize an open string modulus of the D4-brane to calculate the distance between anisotropic vacua for the regime where scale separation is realized in the supergravity limit. We show the dependence of both the geodesic distance and the Distance Conjecture parameter on the unconstrained flux scalings.