A bstract The worldsheet theories that describe Poisson-Lie T-dualisable σ-models on group
manifolds as well as integrable η, λ and β-deformations provide examples of ℰ-models …

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 …

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 …

The goal of this paper is to make first steps towards the quantisation of integrable nonlinear
sigma models using the formalism of affine Gaudin models, by approaching these theories …

Integrable deformations of type IIB superstring theory on AdS 5× S 5 have played an
important role over the last years. The Yang–Baxter deformation is a systematic way of …

A bstract In this paper, we study conformal points among the class of\(\mathcal {E}\)-models.
The latter are σ-models formulated in terms of a current Poisson algebra, whose Lie …

A bstract We show that the CFT with symmetry group\({G} _ {k_1}\times {G} _
{k_2}\times\cdots\times {G} _ {k_n}\) consisting of WZW models based on the same group G …

A bstract A multi-parameter integrable deformation of the principal chiral model is presented.
The Yang-Baxter and bi-Yang-Baxter σ-models, the principal chiral model plus a Wess …

A bstract We explicitly construct families of integrable σ-model actions smoothly inter-
polating between exact CFTs. In the ultraviolet the theory is the direct product of two current …

A bstract We construct a new class of integrable σ-models based on current algebra theories
for a general semisimple group G by utilizing a left-right asymmetric gauging. Their action …