Over-Rotating Supertube Backgrounds

Abstract

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.

latex, 22 pages, 5 figures

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Cited by in corpus (5)

• Nut Charged Space-times and Closed Timelike Curves on the Boundary
• An Exact String Theory Model of Closed Time-Like Curves and Cosmological Singularities
• Black holes in Goedel-type universes with a cosmological constant
• Supertube domain-walls and elimination of closed time-like curves in string theory
• Hagedorn transition and chronology protection in string theory