Full moduli stabilization in the alternative G2 orbifold

Determine whether an alternative G2 orbifold construction with a persistent flat direction admits a choice of fluxes that achieves full moduli stabilization at parametrically large volume and weak coupling.

Background

The paper compares its chosen orbifold with a similar construction studied in earlier work. That alternative setup yields integer dual conformal dimensions in the untwisted sector but retains a flat direction in the parametric scale-separation limit. The authors explicitly state that they do not know whether another flux choice could remove this flat direction while preserving parametrically large volume and weak coupling.