About apparent superluminal drives in generic gravity theories

Abstract As is well known, there exists warp drives in GR, such as the Alcubierre bubbles, which achieve an apparent faster than light travel (Alcubierre in Class Quantum Gravity 11:L73, 1994). A result due to Gao and Wald (Class Quantum Gravity 17:4999, 2000) suggests that such a travel is unlikely...

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Bibliographic Details
Main Authors: Juliana Osorio Morales, Osvaldo P. Santillán
Format: Article
Language:English
Published: SpringerOpen 2022-04-01
Series:European Physical Journal C: Particles and Fields
Online Access:https://doi.org/10.1140/epjc/s10052-022-10323-y