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#### Universal Kaluza-Klein reductions of type IIB to N=4 supergravity in five dimensions

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1003.5642

(Preprint), 303KB

JHEP2010_081.pdf

(Any fulltext), 844KB

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##### Citation

Gauntlett, J. P., & Varela, O. (2010). Universal Kaluza-Klein reductions of type
IIB to N=4 supergravity in five dimensions.* Journal of High Energy Physics,* *2010*(06):
081. doi:10.1007/JHEP06(2010)081.

Cite as: https://hdl.handle.net/11858/00-001M-0000-0012-9B64-7

##### Abstract

We construct explicit consistent Kaluza-Klein reductions of type IIB
supergravity on HK_4 x S^1, where HK_4 is an arbitrary four-dimensional
hyper-Kaehler manifold, and on SE5, an arbitrary five-dimensional
Sasaki-Einstein manifold. In the former case we obtain the bosonic action of
D=5 N=4 (ungauged) supergravity coupled to two vector multiplets. For the SE_5
case we extend a known reduction, which leads to minimal D=5 N=2 gauged
supergravity, to also include a multiplet of massive fields, containing the
breathing mode of the SE_5. We show that the resulting D=5 action is also
consistent with N=4 gauged supergravity coupled to two vector multiplets. This
theory has a supersymmetric AdS_5 vacuum, which uplifts to the class of
supersymmetric AdS_5 x SE_5 solutions, that spontaneously breaks N=4 to N=2,
and also a non-supersymmetric AdS_5 vacuum which uplifts to a class of
solutions first found by Romans.