Supergravity solutions for D-branes in Hpp-wave backgrounds

Details Supergravity solutions for D-branes in Hpp-wave backgrounds Supergravity solutions for D-branes in Hpp-wave backgrounds

2002-05-13

arxiv.org/abs/hep-th/0205106v1

Class.Quant.Grav. 20 (2003) 913-934

Physics

High Energy Physics

High Energy Physics - Theory

30 pages, 4 figures

Scientific paper

We derive two families of supergravity solutions describing D-branes in the maximally supersymmetric Hpp-wave background. The first family of solutions corresponds to quarter-BPS D-branes. These solutions are delocalised along certain directions transverse to the pp-wave. The second family corresponds to the non-supersymmetric D-branes. These solutions are fully localised. A peculiar feature of the nonsupersymmetric solutions is that gravity becomes repulsive close to the core of the D-brane. Both families preserve the amount of supersymmetry predicted by the D-brane probe/CFT analysis. All solutions are written in Brinkman coordinates. To construct these kind of solutions it is crucial to identify the coordinates in which the ansatz looks the simplest. We argue that the natural coordinates to get the supergravity description of the half-BPS branes are the Rosen coordinates.

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