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HKT Geometry and de Sitter Supergravity

Grover, J, Gutowski, JB, Herdeiro, CAR and Sabra, W (2008) HKT Geometry and de Sitter Supergravity Nucl.Phys.B, 809. pp. 406-425.

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Abstract

Solutions of five dimensional minimal de Sitter supergravity admitting Killing spinors are considered. It is shown that the "timelike'' solutions are determined in terms of a four dimensional hyper-Kahler torsion (HKT) manifold. If the HKT manifold is conformally hyper-Kahler the most general solution can be obtained from a sub-class of supersymmetric solutions of minimal N=2 ungauged supergravity, by means of a simple transformation. Examples include a multi-BMPV de Sitter solution, describing multiple rotating black holes co-moving with the expansion of the universe. If the HKT manifold is not conformally hyper-Kahler, examples admitting a tri-holomorphic Killing vector field are constructed in terms of certain solutions of three dimensional Einstein-Weyl geometry.

Item Type: Article
Authors :
NameEmailORCID
Grover, JUNSPECIFIEDUNSPECIFIED
Gutowski, JBj.gutowski@surrey.ac.ukUNSPECIFIED
Herdeiro, CARUNSPECIFIEDUNSPECIFIED
Sabra, WUNSPECIFIEDUNSPECIFIED
Date : 16 June 2008
Identification Number : 10.1016/j.nuclphysb.2008.08.024
Uncontrolled Keywords : hep-th, hep-th
Related URLs :
Depositing User : Symplectic Elements
Date Deposited : 17 May 2017 12:36
Last Modified : 17 May 2017 15:04
URI: http://epubs.surrey.ac.uk/id/eprint/836017

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