Abstract
The seven and nine dimensional geometries associated with certain classes of supersymmetric AdS 3 and AdS 2 solutions of type IIB and D = 11 supergravity, respectively, have many similarities with Sasaki-Einstein geometry. We further elucidate their properties and also generalise them to higher odd dimensions by introducing a new class of complex geometries in 2n + 2 dimensions, specified by a Riemannian metric, a scalar field and a closed three-form, which admit a particular kind of Killing spinor. In particular, for n ≥ 3, we show that when the geometry in 2n + 2 dimensions is a cone we obtain a class of geometries in 2n + 1 dimensions, specified by a Riemannian metric, a scalar field and a closed two-form, which includes the seven and nine-dimensional geometries mentioned above when n = 3, 4, respectively. We also consider various ansätze for the geometries and construct infinite classes of explicit examples for all n.
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Communicated by G.W. Gibbons
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Gauntlett, J.P., Kim, N. Geometries with Killing Spinors and Supersymmetric AdS Solutions. Commun. Math. Phys. 284, 897–918 (2008). https://doi.org/10.1007/s00220-008-0575-5
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DOI: https://doi.org/10.1007/s00220-008-0575-5