# Semiclassical instability of dynamical warp drives

@article{Finazzi2009SemiclassicalIO, title={Semiclassical instability of dynamical warp drives}, author={Stefano Finazzi and Stefano Liberati and Carlos Barcel'o}, journal={Physical Review D}, year={2009}, volume={79}, pages={124017} }

Warp drives are very interesting configurations in general relativity: At least theoretically, they provide a way to travel at superluminal speeds, albeit at the cost of requiring exotic matter to exist as solutions of Einstein's equations. However, even if one succeeded in providing the necessary exotic matter to build them, it would still be necessary to check whether they would survive to the switching on of quantum effects. Semiclassical corrections to warp-drive geometries have been…

## 38 Citations

### Superluminal warp drives are semiclassically unstable

- Physics
- 2010

Warp drives are very interesting configurations of General Relativity: they provide a way to travel at superluminal speeds, albeit at the cost of requiring exotic matter to build them. Even if one…

### Semiclassical instability of warp drives

- Physics
- 2010

Warp drives, at least theoretically, provide a way to travel at superluminal speeds. However, even if one succeeded in providing the necessary exotic matter to construct them, it would still be…

### Quantum effects in warp drives

- Physics
- 2013

Warp drives are interesting configurations that, at least theoretically, provide a way to travel at superluminal speed. Unfortunately, several issues seem to forbid their realization. First, a huge…

### Impossibility of superluminal travel in Lorentz violating theories

- Physics
- 2012

Warp drives are space-times allowing for superluminal travel. However, they are quantum mechanically unstable because they produce a Hawking-like radiation which is blue shifted at their front wall…

### Introducing physical warp drives

- PhysicsClassical and Quantum Gravity
- 2021

The Alcubierre warp drive is an exotic solution in general relativity. It allows for superluminal travel at the cost of enormous amounts of matter with negative mass density. For this reason, the…

### Quantum tunneling and quasinormal modes in the spacetime of the Alcubierre warp drive

- Physics
- 2017

In a seminal paper, Alcubierre showed that Einstein’s theory of general relativity appears to allow a super-luminal motion. In the present study, we use a recent eternal-warp-drive solution found by…

### Warp drive aerodynamics

- PhysicsJournal of High Energy Physics
- 2022

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…

### Adm Mass in Warp Drive Spacetimes

- PhysicsSSRN Electronic Journal
- 2022

: What happens when a warp bubble has mass? This seemingly innocent question forces one to carefully formalize exactly what one means by a warp bubble, exactly what one means by having the warp…

### Energy condition respecting warp drives: the role of spin in Einstein–Cartan theory

- PhysicsClassical and Quantum Gravity
- 2018

In this paper we study the so called ‘warp drive’ spacetimes within the U4 Riemann–Cartan manifolds of Einstein–Cartan theory. Specifically, the role that spin may play with respect to energy…

### Hyper-Fast Positive Energy Warp Drives

- Physics
- 2021

Solitons in space–time capable of transporting time-like observers at superluminal speeds have long been tied to violations of the weak, strong, and dominant energy conditions of general relativity.…

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