Three-point functions in superstring theory on AdS3 x S3 x T4

Abstract

We consider R and NS spectral flow sectors of type IIB superstring theory on AdS3× S3×T4 in the context of the AdS3/CFT2 correspondence. We present a derivation of the vertex operators creating spectral flow images of chiral primary states previously proposed in the literature. We compute spectral flow conserving three-point functions involving these operators on the sphere. Using the bulk-to-boundary dictionary, we compare the results with the corresponding correlators in the dual conformal field theory, the symmetric product orbifold of T4. In the limit of small string coupling, agreement is found in all the cases considered.