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Journal Article

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

MPS-Authors
http://pubman.mpdl.mpg.de/cone/persons/resource/persons2683

Varela,  Oscar
Quantum Gravity and Unified Theories, AEI Golm, MPI for Gravitational Physics, Max Planck Society;

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Fulltext (public)

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: http://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.