Precise definition of the supersymmetric holographic CFT away from the tensionless point

Clarify and precisely define the two-dimensional holographic conformal field theory dual to superstrings on AdS3×S3×T4 for n5>1 (away from the tensionless point), including the exact form of the marginal deformation of the symmetric orbifold with non-compact seed and its operator content. Establish a concrete, unambiguous formulation of the theory that resolves current ambiguities in its definition.

Background

While the bosonic case admits a perturbative proposal for the holographic CFT and has undergone various tests, the supersymmetric situation for n5>1 is less conclusive. The authors emphasize that, although the dual is expected to be a marginal deformation of a symmetric orbifold with a linear-dilaton-like non-compact seed, the precise definition of this theory is still unsettled.

Their results on extremal and certain non-extremal correlators support aspects of the expected structure but do not fully determine the theory. A precise formulation would enhance the interpretability of non-protected processes and spectral flow sectors and advance the program of AdS3/CFT2 beyond the tensionless limit.