149 citations · 853 across the 47 of their papers we have counts for
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Integrable models based on non-semi-simple groups and plane wave target spacetimes
Konstantinos Sfetsos, Konstantinos Siampos
We initiate the construction of integrable -deformed WZW models based on non-semisimple groups. We focus on the four-dimensional case whose underlying symmetries are based on th…
Scattering in integrable pp-wave backgrounds: S-matrix and absence of particle production
George Georgiou, Konstantinos Sfetsos
Particle production in integrable field theories may exist depending on the vacuum around which excitations are defined. To tackle this and analogous issues with conventional field…
Spinning strings: -deformation and non-Abelian T-dual limit
Rafael Hernandez, Roberto Ruiz, Konstantinos Sfetsos
The simplest example of the -deformation connects the SU(2) Wess-Zumino-Witten model with the non-Abelian T-dual (NATD) of the SU(2) principal chiral model. We analyze spinning…
Dynamically restoring conformal invariance in (integrable) -models
Rigers Aliaj, Konstantinos Sfetsos, Konstantinos Siampos
Integrable -deformed -models are characterized by an underlying current algebra/coset model CFT deformed, at the infinitesimal level, by current/parafermion bilinears. We pro…