Fine Tuning and Six-Dimensional Gauged $N=(1,0)$ Supergravity Vacua

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dc.creatorGuven, R.
dc.creatorLiu, James T.
dc.creatorPope, C. N.
dc.creatorSezgin, E.
dc.date2003-06-20
dc.date2003-10-07
dc.date.accessioned2026-07-07T11:32:11Z
dc.date.available2026-07-07T11:32:11Z
dc.descriptionWe find a new family of supersymmetric vacuum solutions in the six-dimensional chiral gauged N=(1,0) supergravity theory. They are generically of the form AdS_3 x S^3, where the 3-sphere is squashed homogeneously along its Hopf fibres. The squashing is freely adjustable, corresponding to changing the 3-form charge, and the solution is supersymmetric for all squashings. In a limit where the length of the Hopf fibres goes to zero, one recovers, after a compensating rescaling of the fibre coordinate, a solution that is locally the same as the well-known (Minkowski)_4 x S^2 vacuum of this theory. It can now be viewed as a fine tuning of the new more general family. The traditional "Cosmological Constant Problem" is replaced in this theory by the problem of why the four-dimensional (Minkowski)_4 x S^2 vacuum should be selected over other members of the equally supersymmetric AdS_3 x S^3 family. We also obtain a family of dyonic string solutions in the gauged N=(1,0) theory, whose near-horizon limits approach the AdS_3 times squashed S^3 solutions.
dc.descriptionLatex, 17 pages; Section 4 improved
dc.identifierhttps://arxiv.org/abs/hep-th/0306201
dc.identifierhttp://arxiv.org/abs/hep-th/0306201
dc.identifierClass.Quant.Grav.21:1001-1014,2004
dc.identifierdoi:10.1088/0264-9381/21/4/019
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/197510
dc.subjectHigh Energy Physics - Theory
dc.titleFine Tuning and Six-Dimensional Gauged $N=(1,0)$ Supergravity Vacua
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