Warp drive aerodynamics

DOI: 
10.1007/JHEP08(2022)288
Publication date: 
08/08/2022
Main author: 
Barceló, Carlos
IAA authors: 
Barceló, Carlos
Authors: 
Barceló, Carlos;Boyanov, Valentin;Garay, Luis J.;Martín-Martínez, Eduardo;Sánchez Velázquez, Jose M.
Journal: 
Journal of High Energy Physics
Refereed: 
Yes
Publication type: 
Article
Volume: 
2022
Pages: 
288
Abstract: 
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.
Database: 
ADS
URL: 
https://ui.adsabs.harvard.edu/#abs/2022JHEP...08..288B/abstract
ADS Bibcode: 
2022JHEP...08..288B
Keywords: 
Classical Theories of Gravity;Black Holes;Models of Quantum Gravity;Renormalization and Regularization;General Relativity and Quantum Cosmology;High Energy Physics - Theory;Quantum Physics