Scale-separated AdS 3 × s1 vacua from IIA orientifolds

Abstract

We study supersymmetric AdS3 flux vacua of massive type-IIA supergravity on anisotropic G2 orientifolds. Depending on the value of the F4 flux the sevendimensional compact space can either have six small and one large dimension such that the “external” space is scaleseparated andeffectively four-dimensional, or all seven compact dimensions small and parametrically scale-separated fromthethreeexternalones.Withinthissetupwealsodiscuss the Distance Conjecture (including appropriate D4-branes), and highlight that such vacua provide a non-trivial example of the so-called strong Spin-2 Conjecture.