Over-Rotating Supertube Backgrounds

Details Over-Rotating Supertube Backgrounds Over-Rotating Supertube Backgrounds

2003-10-20

arxiv.org/abs/hep-th/0310186v1

Physics

High Energy Physics

High Energy Physics - Theory

latex, 22 pages, 5 figures

Scientific paper

We study classical supertube probes on supergravity backgrounds which are sourced by over-rotating supertubes, and which therefore contain closed timelike curves. We show that the BPS probes are stable despite the appearance of negative kinetic terms in the probe action. By studying the radial oscillations of these probes, we show that closed geodesics exist on these backgrounds.

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