These are pedagogical lecture notes discussing current–current deformations of 2-
dimensional field theories. The deformations that are considered here are generated …

The root-TT¯ flow was recently introduced as a universal and classically marginal
deformation of any two-dimensional translation-invariant field theory. The flow commutes …

A bstract Prompted by the recent developments in integrable single trace\(T\overline {T}\)
and\(J\overline {T}\) deformations of 2d CFTs, we analyse such deformations in the context …

String theory has-duality symmetry when the target space has Abelian isometries. A
generalization of-duality, where the isometry group is non-Abelian, is known as non-Abelian …

Poisson-Lie duality is a generalization of Abelian and non-Abelian T duality, and it can be
viewed as a map between solutions of the low-energy effective equations of string theory, ie …

A bstract Generalized dualities had an intriguing incursion into Double Field Theory (DFT) in
terms of local O (d, d) transformations. We review this idea and use the higher derivative …

A bstract Using a recently developed formulation of double field theory in superspace, the
graviton, B-field, gravitini, dilatini, and Ramond-Ramond bispinor are encoded in a single …

We consider a two-fold problem: on the one hand, the classification of a family of solution-
generating techniques in (modified) supergravity and, on the other hand, the classification of …

A bstract We construct supergravity backgrounds for the integrable η-deformations of the
AdS 2× S 2× T 6 and AdS 5× S 5 superstring sigma models. The η-deformation is governed …

We combine the Yang-Baxter deformation with higher-spin auxiliary field deformations to
construct a multi-parameter family of integrable deformations of the principal chiral model on …