Barceló, CarlosBoyanov Savov, ValentinGaray Elizondo, Luis JavierMartín Martínez, EduardoSánchez Velázquez, José Manuel2023-06-222023-06-222022-08-291029-847910.1140/epjc/s10052-022-10702-5https://hdl.handle.net/20.500.14352/73047© The Authors 2022 E. M-M. is funded by the NSERC Discovery program as well as his Ontario Early Researcher Award. Financial support was provided by Grants PID2020-118159GB-C43 and PID2020118159GB-C44 funded by MCIN/AEI/10.13039/501100011033 and by "ESF Investing in your future". Financial support was also provided by the Junta de Andalucia through the project FQM219. C. B. acknowledges financial support from the State Agency for Research of the Spanish MCIU through the "Center of Excellence Severo Ochoa" award to the Instituto de Astrofisica de Andalucia (SEV-2017-0709). V. B. is funded by the Spanish Government fellowship FPU17/04471.In this work we analyse the potential for a warp drive spacetime to develop instabilities due to the presence of quantum matter. Particularly, we look for points of infinite blueshift (which are analogous to points of a black hole inner horizon, known for its semiclassical instability), and categorise them through the behaviour of geodesics in their vicinity. We find that warp-drive bubbles in dimension 2+1 or higher are in fact likely to be stable, as they generally contain only isolated points where divergences are approached, leading to a finite limit for the overall accumulation of destabilising energy. Furthermore, any semiclassical instabilities in the warp drive due to energy-density buildups can be further diminished with particular, more "aerodynamic" shapes and trajectories for the drive.engAtribución 3.0 Españajournal articlehttp://dx.doi.org/10.1007/JHEP08(2022)288https://link.springer.com/open access51-73State vectorBlack holesQuantumReductionModelsCollapseFluctuationsDynamicsFísica-Modelos matemáticosFísica matemática