A perturbative CFT dual for pure NS–NS AdS3_{3} strings

Oct 14, 2021
50 pages
Published in:
  • J.Phys.A 55 (2022) 6, 064001
  • Published: Jan 19, 2022
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Abstract: (IOP)
We construct a conformal field theory dual to string theory on AdS3_{3} with pure NS–NS flux. It is given by a symmetric orbifold of a linear dilaton theory deformed by a marginal operator from the twist-2 sector. We compute two- and three-point functions on the CFT side to 4th order in conformal perturbation theory at large N. They agree with the string computation at genus 0, thus providing ample evidence for a duality. We also show that the full spectra of both short and long strings on the CFT and the string side match. The duality should be understood as perturbative in N 1^{−1}.
Note:
  • 50 pages
  • AdS/CFT correspondence
  • string theory
  • SL(2, R) WZW model
  • orbifold CFT
  • conformal perturbation theory
  • field theory: conformal
  • operator: marginal
  • dilaton: linear
  • n-point function: 3
  • duality