Supersymmetric backgrounds from $\lambda$-deformations

Abstract

We provide the first supersymmetric embedding of an integrable $\lambda$-deformation to type-II supergravity. Specifically, that of the near horizon of the NS1-NS5 brane intersection, geometrically corresponding to $Ad{S}_3\times S^3\times T^4$. We show that the deformed background preserves 1/4 of the maximal supersymmetry. In the Penrose limit we show that it preserves no-more than one half of the maximal supersymmetry.

arXiv comment24 pages, 1 figure, JHEP version

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• Integrability of the $\lambda$-deformation of the PCM with spectators
• Type-II backgrounds from deformed coset CFTs