Abstract
In this article we investigate the structure of the four-point functions of the AdS3-WZNW model. We consider the integral expression for the unflowed four-point correlator involving at least one state in the discrete part of the spectrum derived by analytic continuation from the H +3 -WZNW model and we show that the conformal blocks can be obtained from those with an extremal-weight state by means of an intertwining operator. We adapt the procedure for dealing with correlators with a single unit of spectral flow charge and we get a factorized integral expression for the corresponding four-point function. We finally transform the formulas back to the space-time picture.
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Cagnacci, Y., Iguri, S.M. Spectral flow and conformal blocks in AdS3 . J. High Energ. Phys. 2015, 36 (2015). https://doi.org/10.1007/JHEP09(2015)036
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DOI: https://doi.org/10.1007/JHEP09(2015)036