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- W1550152447 abstract "Recent solutions to the Einstein Field Equations involving negative energy densities, i.e., matter violating the weak-energy-condition, have been obtained, namely traversable wormholes, the Alcubierre warp drive and the Krasnikov tube. These solutions are related to superluminal travel, although locally the speed of light is not surpassed. It is difficult to define faster-than-light travel in generic space-times, and one can construct metrics which apparently allow superluminal travel, but are in fact flat Minkowski space-times. Therefore, to avoid these dificulties it is important to provide an appropriate definition of superluminal travel. We investigate these problems and the relationship between weak-energy-condition violation and superluminal travel." @default.
- W1550152447 created "2016-06-24" @default.
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- W1550152447 date "2003-01-01" @default.
- W1550152447 modified "2023-09-25" @default.
- W1550152447 title "Weak Energy Condition Violation and Superluminal Travel" @default.
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- W1550152447 doi "https://doi.org/10.1007/3-540-36973-2_15" @default.
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