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Paper   IPM / P / 15440
School of Physics
  Title:   Holographic Integration of T T & J T through O(d,d)
1.  T. Araujo
2.  E. \'O Colg\'ain
3.  Y. Sakatani
4.  M.M. Sheikh-Jabbari
5.  H. Yavartanoo
  Status:   Published
  Journal: JHEP
  Vol.:  1903
  Year:  2019
  Pages:   168
  Supported by:  IPM
Prompted by the recent developments in integrable single trace T T and J T deformations of 2d CFTs, we analyse such deformations in the context of AdS3/CFT2 from the dual string worldsheet CFT viewpoint. We observe that finite form of these deformations can be recast as O(d,d) transformations, which are an integrated form of the corresponding Exactly Marginal Deformations (EMD) in the worldsheet Wess-Zumino-Witten (WZW) model, thereby generalising the Yang-Baxter class that includes TsT. We also note that equivalence between O(d,d) transformations and marginal deformations of WZW models, proposed by Hassan & Sen for Abelian chiral currents, can be extended to non-Abelian chiral currents to recover a well-known constraint on EMD in the worldsheet CFT. We also argue that such EMD are also solvable from the worldsheet theory viewpoint.

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