A non-singular infra-red flow from D=5 gauged supergravity

Details A non-singular infra-red flow from D=5 gauged supergravity A non-singular infra-red flow from D=5 gauged supergravity

2000-05-19

arxiv.org/abs/hep-th/0005185v2

Phys.Lett. B487 (2000) 30-35

Physics

High Energy Physics

High Energy Physics - Theory

10 pages, Latex; refs added

Scientific paper

10.1016/S0370-2693(00)00817-0

We discuss domain wall solutions of 5-dimensional supergravity corresponding to a cosine-superpotential, which is derived by a gauging of the two Abelian isometries of the scalar coset SU(2,1)/U(2). We argue that this potential can be obtained from M-theory compactification in the presence of G-fluxes and an M5-brane instanton gas. If we decouple the volume scalar of the internal space, the superpotential allows for two extrema, which are either ultra-violet or infra-red attractive. Asymptotically we approach therefore either the boundary or the Killing horizon of an anti-deSitter space or flat spacetime for a vanishing cosmological constant. If the volume scalar does not decouple, we obtain a run-away potential corresponding to dilatonic domain walls, which always run towards a vanishing cosmological constant.

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