Matter Coupled AdS_3 Supergravities and Their Black Strings

Details Matter Coupled AdS_3 Supergravities and Their Black Strings Matter Coupled AdS_3 Supergravities and Their Black Strings

1999-08-12

arxiv.org/abs/hep-th/9908089v2

Nucl.Phys. B573 (2000) 275-290

Physics

High Energy Physics

High Energy Physics - Theory

20 pages, latex, typos corrected in Sec. 4

Scientific paper

10.1016/S0550-3213(99)00734-8

We couple n copies of N=(2,0) scalar multiplets to a gauged N=(2,0) supergravity in 2+1 dimensions which admits AdS_3 as a vacuum. The scalar fields are charged under the gauged R-symmetry group U(1) and parametrize certain Kahler manifolds with compact or non-compact isometries. The radii of these manifolds are quantized in the compact case, but arbitrary otherwise. In the compact case, we find half-supersymmetry preserving and asymptotically Minkowskian black string solutions. For a particular value of the scalar manifold radius, the solution coincides with that of Horne and Horowitz found in the context of a string theory in 2+1 dimensions. In the non-compact case, we find half-supersymmetry preserving and asymptotically AdS_3 string solutions which have naked singularities. We also obtain two distinct AdS_3 supergravities coupled to n copies of N=(1,0) scalar multiplets either by the truncation of the (2,0) model or by a direct construction.

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