Stable de Sitter vacua in N=2, D=5 supergravity

Abstract

We find 5D gauged supergravity theories exhibiting stable de Sitter vacua. These are the first examples of stable de Sitter vacua in higher-dimensional (D>4) supergravity. Non-compact gaugings with tensor multiplets and R-symmetry gauging seem to be the essential ingredients in these models. They are however not sufficient to guarantee stable de Sitter vacua, as we show by investigating several other models. The qualitative behaviour of the potential also seems to depend crucially on the geometry of the scalar manifold.

26 pages, v2:typos corrected, published version

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• The R-map and the Coupling of N=2 Tensor Multiplets in 5 and 4 Dimensions
• No metastable de Sitter vacua in N=2 supergravity with only hypermultiplets
• Gauging CSO groups in N=4 Supergravity
• Quantum gravity constraints on scale separation and de Sitter in five dimensions
• Scaling Cosmologies of N=8 Gauged Supergravity
• Stable de Sitter Vacua in 4 Dimensional Supergravity Originating from 5 Dimensions
• Null Deformed Domain Wall
• A General Study of Ground States of N=2 Supergravity Theories with Symmetric Scalar Manifolds in 5 Dimensions
• $d{S}_5$ vacua from matter-coupled 5D N=4 gauged supergravity
• $d{S}_4$ vacua from matter-coupled 4D N=4 gauged supergravity
• Quintessence and false vacuum: Two sides of the same coin?