362 citations · 4.9k across the 96 of their papers we have counts for
96 papers
Spacetimes for λ-deformations
Konstantinos Sfetsos, Daniel C. Thompson
We examine a recently proposed class of integrable deformations to two-dimensional conformal field theories. These λ-deformations interpolate between a WZW model and the non-Abelia…
New supersymmetric backgrounds in Type IIA supergravity
Konstadinos Sfetsos, Daniel C. Thompson
We present a family of N=1 supersymmetric backgrounds in type-IIA supergravity and their lifts to eleven-dimensional supergravity. These are of the form and are…
Gravity duals of N=2 SCFTs and asymptotic emergence of the electrostatic description
P. Marios Petropoulos, Konstadinos Sfetsos, Konstadinos Siampos
We built the first eleven-dimensional supergravity solutions with SO(2,4)xSO(3)xU(1)_R symmetry that exhibit the asymptotic emergence of an extra U(1) isometry. This enables us to…
The all-loop non-Abelian Thirring model and its RG flow
Georgios Itsios, Konstadinos Sfetsos, Konstadinos Siampos
We analyze the renormalization group flow in a recently constructed class of integrable sigma-models which interpolate between WZW current algebra models and the non-Abelian T-dual…
Gauged WZW-type theories and the all-loop anisotropic non-Abelian Thirring model
Konstadinos Sfetsos, Konstadinos Siampos
We study what we call the all-loop anisotropic bosonized Thirring sigma model. This interpolates between the WZW model and the non-Abelian T-dual of the principal chiral model for…
Non-integrability in non-relativistic theories
Dimitrios Giataganas, Konstadinos Sfetsos
Generic non-relativistic theories giving rise to non-integrable string solutions are classified. Our analysis boils down to a simple algebraic condition for the scaling parameters…