Hollowood, Timothy J.
Luis Miramontes, J.
Schmidtt, David M.
Total Authors: 3
 Swansea Univ, Dept Phys, Swansea SA2 8PP, W Glam - Wales
 Univ Santiago de Compostela, Dept Fis Particulas, Santiago De Compostela 15782 - Spain
 Univ Santiago de Compostela, IGFAE, Santiago De Compostela 15782 - Spain
 Univ Estadual Paulista, Inst Fis Teor IFT, BR-01140070 Sao Paulo - Brazil
Total Affiliations: 4
Journal of High Energy Physics;
NOV 4 2014.
Web of Science Citations:
A general class of deformations of integrable sigma-models with symmetric space F/G target-spaces are found. These deformations involve defining the non-abelian T dual of the sigma-model and then replacing the coupling of the Lagrange multiplier imposing flatness with a gauged F/F WZW model. The original sigma-model is obtained in the limit of large level. The resulting deformed theories are shown to preserve both integrability and the equations-of-motion, but involve a deformation of the symplectic structure. It is shown that this deformed symplectic structure involves a linear combination of the original Poisson bracket and a generalization of the Faddeev-Reshetikhin Poisson bracket which we show can be re-expressed as two decoupled F current algebras. It is then shown that the deformation can be incorporated into the classical model of strings on R x F/G via a generalization of the Pohlmeyer reduction. In this case, in the limit of large sigma-model coupling it is shown that the theory becomes the relativistic symmetric space sine-Gordon theory. These results point to the existence of a deformation of this kind for the full Green-Schwarz superstring on AdS(5) x S-5. (AU)