Notes on the SL(2,R) CFT

Abstract

This is a set of notes which reviews and addresses issues in the SL(2,R) conformal field theory, while working primarily in a basis of vertex operators of definite weight under the affine algebra. Following a review of the H3 coset model and the spectrum of the SL(2,R) CFT, derivations are given for the selection rules and the reduction of descendant to primary correlators involving arbitrary spectral flowed modules. Together with a description of the equivalence of correlation functions of fixed total spectral flow, this leads to an enumeration of the minimal set of three-point amplitudes required to determine the fusion rules. The corresponding fusion rules for elements of the spectrum are compared to those which arise through analytic continuation of the OPE of primary fields in the H3 model, and the apparent failure of the closure of the associated SL(2,R) OPE is described in detail. A discussion of the consistency of the respective fusion rules with the conjectured structure of equivalent factorizations of SL(2,R) four-point correlators is presented.

85 pages, 5 figures

References in corpus (8)

• H^+_3 WZNW model from Liouville field theory
• Conformal field theory on the plane
• Coulomb integrals for the SL(2,R) WZNW model
• Worldsheet four-point functions in AdS(3)/CFT(2)
• Fusion rules and four-point functions in the AdS3 WZNW model
• The space-time operator product expansion in string theory duals of field theories
• Four Point Functions in the SL(2,R) WZW Model
• On modular properties of the AdS3 CFT

Cited by in corpus (2)

• Protected $SL(2,\mathbb{R})$ Symmetry in Quantum Cosmology
• The non-rational limit of D-series minimal models