N=4 "Fake" Supergravity

Abstract

We study curved and flat BPS-domain walls in 5D, N=4 gauged supergravity and show that their effective dynamics along the flow is described by a generalized form of "fake supergravity". This generalizes previous work in N=2 supergravity and might hint towards a universal behavior of gauged supergravity theories in supersymmetric domain wall backgrounds. We show that BPS-domain walls in 5D, N=4 supergravity can never be curved if they are supported by the supergravity scalar only. Furthermore, a purely Abelian gauge group or a purely semisimple gauge group can never lead to a curved domain wall, and the flat walls for these gaugings always exhibit a runaway behavior.

32 pages, 1 figure, Latex2e, v2: minor corrections and references added

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Cited by in corpus (26)

• Flow Equations for Non-BPS Extremal Black Holes
• Hidden supersymmetry of domain walls and cosmologies
• Braneworld Models of Scalar Fields with Generalized Dynamics
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