Correlation functions of symmetric orbifold from AdS${}_3$ string theory

Abstract

The paper examines correspondence among correlation functions of symmetric orbifold and string theory on AdS3 described by sl(2) Wess-Zumino-Novikov-Witten (WZNW) model. We start by writing down n-point function of twist operators in the symmetric orbifold in terms of the data of effective Riemann surface. It is then shown that the correlation function can be reproduced from the sl(2) WZNW model. The computation is based on the claim that string worldsheet is given by the same Riemann surface and the reduction method from sl(2) WZNW model to Liouville field theory. We first consider the genus zero surface and then generalize the analysis to the case of generic genus. The result should be an important ingredient for deriving AdS${}_3$/CFT${}_2$ correspondence with tensionless superstrings to all orders in string perturbation theory.

arXiv comment31 pages

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• Summing over Geometries in String Theory
• Partition functions of the tensionless string
• CFT duals of three-dimensional de Sitter gravity
• String correlators on ${\text{AdS}}_3$: Three-point functions
• Higher genus correlators for tensionless ${\mathrm{AdS}}_3$ strings
• Symmetries and Covering Maps for the Minimal Tension String on $\mathbf{Ad}{\mathbf{S}}_3\times {\mathbf{S}}^3\times {\mathbf{T}}^4$
• Higher rank FZZ-dualities
• The $Ad{S}_3\times S^1$ Chiral Ring
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