Supertube domain-walls and elimination of closed time-like curves in string theory

Abstract

We show that some novel physics of supertubes removes closed time-like curves from many supersymmetric spaces which naively suffer from this problem. The main claim is that supertubes naturally form domain-walls, so while analytical continuation of the metric would lead to closed time-like curves, across the domain-wall the metric is non-differentiable, and the closed time-like curves are eliminated. In the examples we study the metric inside the domain-wall is always of the Gödel type, while outside the shell it looks like a localized rotating object, often a rotating black hole. Thus this mechanism prevents the appearance of closed time-like curves behind the horizons of certain rotating black holes.

22 pages, JHEP3 class. V2: Some corrections and clariffications, references added. V3: more corrections to formulas, results unchanged. V4: minor typos, as published in PRD

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Cited by in corpus (24)

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• Instability of hyper-compact Kerr-like objects
• One Ring to Rule Them All ... and in the Darkness Bind Them?
• A Geometric Look on the Microstates of Supertubes
• The final stages of accretion onto non-Kerr compact objects
• An Exact String Theory Model of Closed Time-Like Curves and Cosmological Singularities
• Testing the existence of regions of stable orbits at small radii around black hole candidates
• Singularities and closed time-like curves in type IIB 1/2 BPS geometries
• Hagedorn transition and chronology protection in string theory
• Over-Rotating Black Holes, Godel Holography and the Hypertube
• 3D simulations of the accretion process in Kerr space-time with arbitrary value of the spin parameter
• Imaging Higher Dimensional Black Objects
• Cosmic String Lensing and Closed Time-like Curves
• Studies Of The Over-Rotating BMPV Solution
• Instability of Tachyon Supertube in Type IIA Godel Spacetime
• Violation of the Carter-Israel conjecture and its astrophysical implications
• The Tomimatsu-Sato metric reloaded
• Optical properties of null geodesics emerging from dynamical systems
• M-theory Supertubes with Three and Four Charges
• Causal transformation of Gödel-type space-times in conformal field theory
• Removal of closed time-like curves by supertube domain walls