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• W1567607188 abstract "In this paper the problem of the quantum stability of the two-dimensional warp drive spacetime moving with an apparent faster than light velocity is considered. We regard as a maximum extension beyond the event horizon of that spacetime its embedding in a three-dimensional Minkowskian space with the topology of the corresponding Misner space. It is obtained that the interior of the spaceship bubble becomes then a multiply connected nonchronal region with closed spacelike curves and that the most natural vacuum allows quantum fluctuations which do not induce any divergent behavior of the renormalized stress-energy tensor, even on the event (Cauchy) chronology horizon. In such a case, the horizon encloses closed timelike curves only at scales close to the Planck length, so that the warp drive satisfies Ford's negative energy-time inequality. Also found is a connection between the superluminal two-dimensional warp drive space and two-dimensional gravitational kinks. This connection allows us to generalize the considered Alcubierre metric to a standard, nonstatic metric which is only describable on two different coordinate patches." @default.
• W1567607188 created "2016-06-24" @default.
• W1567607188 creator A5008639299 @default.
• W1567607188 date "2000-07-14" @default.
• W1567607188 modified "2023-10-18" @default.
• W1567607188 title "Warp drive space-time" @default.
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• W1567607188 doi "https://doi.org/10.1103/physrevd.62.044005" @default.
• W1567607188 hasPublicationYear "2000" @default.
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