منابع مشابه
Quantum effects in the Alcubierre warp drive spacetime
The expectation value of the stress-energy tensor of a free conformally invariant scalar field is computed in a two-dimensional reduction of the Alcubierre “warp drive” spacetime. The stress-energy is found to diverge if the apparent velocity of the spaceship exceeds the speed of light. If such behavior occurs in four dimensions, then it appears implausible that “warp drive” behavior in a space...
متن کاملQuantum Eeects in the Alcubierre Warp Drive Spacetime
The expectation value of the stress-energy tensor of a free conformally invariant scalar eld is computed in a two-dimensional reduction of the Al-cubierre \warp drive" spacetime. The stress-energy is found to diverge if the apparent velocity of the spaceship exceeds the speed of light. If such behavior occurs in four dimensions, then it appears implausible that \warp drive" behavior in a spacet...
متن کاملWarp-Drives: The Dreams and Realities Part I: A Problem Statement and Insights
Warp-drive feasibility and the theoretical basis for such devices are examined. A literature search reveals three basic schemes to travel faster than the speed of light. However, all of these violate various portions of Einstein’s Theory of Special Relativity where they all require a negative stress-energy tensor to solve Einstein’s field equations. To some, this infers the need for negative or...
متن کاملAggressiveness / Risk Effects Based Scheduling in Time Warp
The Time Warp synchronization protocol for parallel discrete event simulation is characterized by aggressiveness and risk. The former property refers to greediness in the execution of unsafe events. The latter one refers to greediness in the notification of new events produced by aggressive event execution. Both these properties are potential sources for rollback occurrence/spreading. In this p...
متن کاملNew Methods in WARP
The WARP[1] code is being developed and applied to simulate the creation and propagation of the high-current, space-charge dominated beams that are required for heavyion driven fusion energy (HIF). New methods and capabilities have recently been introduced into WARP, a multidimensional particle-in-cell code developed for the study of space-charge dominated beams. We describe: (a) a 2D3V “slice”...
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ژورنال
عنوان ژورنال: EPJ Web of Conferences
سال: 2013
ISSN: 2100-014X
DOI: 10.1051/epjconf/20135801010