T T ¯ and LST

Amit Giveon, Nissan Itzhaki*, David Kutasov

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

163 Scopus citations


It was recently shown that the theory obtained by deforming a general two dimensional conformal theory by the irrelevant operator TT¯ is solvable. In the context of holography, a large class of such theories can be obtained by studying string theory on AdS3. We show that a certain single trace TT¯ deformation of the boundary CFT2 gives rise in the bulk to string theory in a background that interpolates between AdS3 in the IR and a linear dilaton spacetime in the UV, i.e. to a two dimensional vacuum of Little String Theory. This construction provides holographic duals for a large class of vacua of string theory in asymptotically linear dilaton spacetimes, and sheds light on the UV behavior of TT¯ deformed CFT2. It may provide a step towards holography in flat spacetime.

Original languageAmerican English
Article number122
JournalJournal of High Energy Physics
Issue number7
StatePublished - 1 Jul 2017

Bibliographical note

Publisher Copyright:
© 2017, The Author(s).


  • AdS-CFT Correspondence
  • Conformal Field Models in String Theory
  • Gauge-gravity correspondence
  • Integrable Field Theories


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