Abstract
We construct a family of type IIB string backgrounds that are deformations of AdS3 × S3 × T4 with a “squashed” AdS3 × S3 metric supported by a combination of NSNS and RR fluxes. They have global SU(1, 1) × SU(2) symmetry, regular curvature, constant dilaton and preserve 8 supercharges. Upon compactification to 4 dimensions they reduce to \( \mathcal{N} \) = 2 supersymmetric AdS2 × S2 solutions with electric and magnetic Maxwell fluxes. These type IIB supergravity solutions can be found from the undeformed AdS3 × S3 × T4 background by a combination of T-dualities and S-duality. In contrast to T-duality, S-duality transformations of a type IIB supergravity background do not generally preserve the classical integrability of the corresponding Green-Schwarz superstring sigma model. Nevertheless, we show that integrability is preserved in the present case. Indeed, we find that these backgrounds can be obtained, up to T-dualities, from an integrable inhomogeneous Yang-Baxter deformation (with unimodular Drinfel’d-Jimbo R-matrix) of the original AdS3 × S3 supercoset model.
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ArXiv ePrint: 2206.12347
Also on leave from Institute for Theoretical and Mathematical Physics (ITMP) and Lebedev Institute. (Arkady A. Tseytlin)
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Hoare, B., Seibold, F.K. & Tseytlin, A.A. Integrable supersymmetric deformations of AdS3 × S3 × T4. J. High Energ. Phys. 2022, 18 (2022). https://doi.org/10.1007/JHEP09(2022)018
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DOI: https://doi.org/10.1007/JHEP09(2022)018