Instability of Tachyon Supertube in Type IIA Godel Spacetime
arXiv:hep-th/0412096 · doi:10.1016/j.physletb.2005.04.031
Abstract
We study the tachyon supertube probes in a type IIA supergravity background which is a stringy-like Gödel spacetime and contains closed timelike curve. In the case of small value of , which is a parameter of the background, we use the Minahan-Zwiebach tachyon action to obtain a single regular tube solution and argue that the tube is a BPS D2-brane. However, we find that the fluctuation around the tube configuration has a negative-energy mode. This means that the tachyon supertube, despite being a BPS configuration, develops an instability in the pathological spacetime with closed timelike curve which violates the causality.
Latex 12 pages, add more discussions in last section
References in corpus (7)
- Nut Charged Space-times and Closed Timelike Curves on the Boundary
- A deformation of AdS_5 x S^5
- Supertube domain-walls and elimination of closed time-like curves in string theory
- Tachyon Tube on non BPS D-branes
- Tubular Solutions in NS5-brane, Dp-brane and Macroscopic Strings Backgrounds
- Condensation of Tubular D2-branes in Magnetic Field Background
- Entropy and Quantum States of Tachyon Supertube
Cited by in corpus (6)
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- Gödel-type universes and chronology protection in Horava-Lifshitz gravity
- Hagedorn transition and chronology protection in string theory
- Homogeneous Gödel-type solutions in hybrid metric-Palatini gravity
- The Godel-Schrodinger Spacetime and Stringy Chronology Protection