Physical Interpretation of Singular Deformed Backgrounds

Determine whether the physical singularities appearing in the non-abelian uni-vector-deformed backgrounds correspond to specific non-abelian dualities between physical objects, to a non-abelian version of the sedimentation mechanism, or to another physical phenomenon.

Background

The explicit deformed $AdS_5$, Euclidean $AdS_4$, and Minkowski or Euclidean “flat” backgrounds contain non-trivial scalar curvature or flux singularities. In particular, the paper observes singular loci in the deformed geometries and discusses a possible relation to brane sedimentation.

Because the non-abelian deformations have a discrete character, the authors state that their relation to brane sedimentation is less direct than in the abelian setting. The unresolved question is whether these singular backgrounds encode non-abelian dualities involving physical objects, represent a non-abelian sedimentation mechanism, or have a different interpretation.