On non-abelian T-dual geometries with Ramond fluxes Original Research Article

We show how to implement T-duality along non-abelian isometries in backgrounds with non-vanishing Ramond fields. When the dimension of the isometry group is odd (even) the duality swaps (preserves) the chirality of the theory. In certain cases a non-abelian duality can result in a massive type-IIA background. We provide two examples by dualising image isometry subgroups in image and image. The resultant dual geometries inherit the original AdS factors but have transverse spaces with reduced isometry and preserve only half of the original supersymmetry. The non-abelian dual of image has an M-theory lift which is related to the gravity duals of image superconformal theories. We comment on a possible interpretation of this as a high spin limit.