Integrable λ-deformations: squashing coset CFTs and AdS5 × S 5

Saskia Demulder, Konstantinos Sfetsos, Daniel C. Thompson

Research output: Contribution to journalArticlepeer-review

72 Scopus citations


Abstract: We examine integrable λ-deformations of SO(n + 1)/SO(n) coset CFTs and their analytic continuations. We provide an interpretation of the deformation as a squashing of the corresponding coset σ-model’s target space. We realise the λ-deformation for n = 5 case as a solution to supergravity supported by non-vanishing five-form and dilaton. This interpolates between the coset CFT SO(4, 2)/SO(4, 1) × SO(6)/SO(5) constructed as a gauged WZW model and the non-Abelian T-dual of the AdS5 × S5 spacetime.

Original languageEnglish
Article number19
JournalJournal of High Energy Physics
Issue number7
StatePublished - 23 Jul 2015
Externally publishedYes


  • Conformal Field Models in String Theory
  • Integrable Field Theories
  • Sigma Models
  • String Duality

ASJC Scopus subject areas

  • Nuclear and High Energy Physics


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