New Supersymmetric Vacua for N=4, D=4 Gauged Supergravity

Abstract

In this paper we obtain supersymmetric brane-like configurations in the vacuum of N=4 gauged $SU(2)\times SU(2)$ supergravity theory in four spacetime dimensions. Almost all of these vacuum solutions preserve either half or one quarter of the supersymmetry in the theory. We also study the solutions in presence of nontrivial axionic and gauge field backgrounds. In the case of pure gravity with axionic charge the geometry of the spacetime is $Ad{S}_3\times R^1$ with N=1 supersymmetry. An interesting observation is that the domain walls of this theory cannot be given an interpretation of a 2-brane in four dimensions. But it still exists as a stable vacuum. This feature is quite distinct from the domain-wall configuration in massive type IIA supergravity in ten dimensions.

14 pages, Latex, v1: one reference and an important note added, v2: minor text modifications to incorporate more references, (to appear in Physics Letters)

References in corpus (4)

• Non-Abelian BPS Monopoles in N=4 Gauged Supergravity
• Non-Abelian Solitons in N=4 Gauged Supergravity and Leading Order String Theory
• Gauged Supergravity from Dimensional Reduction
• On the Compactification of Type IIA String Theory

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• Supersymmetric domain walls in maximal 6D gauged supergravity I
• Euclidean Freedman-Schwarz model
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• Generalised Penrose Limits and PP-Waves
• Supersymmetric domain walls in maximal 6D gauged supergravity III
• Supersymmetric configurations in Euclidean Freedman-Schwarz model