Dropping out of warp.....go to half impulse

[ydoaPs]

The plasma injectors are fused and the warp coils are fried, but is that why the warp field destabilized? It seems the answer may be "no".

 

Apparently, when QM is taken into account, warp fields destabilize near c and the inertial bubble becomes irradiated.

 

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 analyzed only for eternal warp-drive bubbles traveling at fixed superluminal speeds. Here, we investigate the more realistic case in which a superluminal warp drive is created out of an initially flat spacetime. First of all we analyze the causal structure of eternal and dynamical warp-drive spacetimes. Then we pass to the analysis of the renormalized stress-energy tensor (RSET) of a quantum field in these geometries. While the behavior of the RSET in these geometries has close similarities to that in the geometries associated with gravitational collapse, it shows dramatic differences too. On one side, an observer located at the center of a superluminal warp-drive bubble would generically experience a thermal flux of Hawking particles. On the other side, such Hawking flux will be generically extremely high if the exotic matter supporting the warp drive has its origin in a quantum field satisfying some form of Quantum Inequalities. Most of all, we find that the RSET will exponentially grow in time close to, and on, the front wall of the superluminal bubble. Consequently, one is led to conclude that the warp-drive geometries are unstable against semiclassical back-reaction.

http://arxiv.org/abs/0904.0141

 

Now, who's working on the Star Gate?

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Merged post follows:

Consecutive posts merged

Also, what possible FTL is left?

[Moontanman]

Take your pick, I'm sure there's plenty for everyone!

 

http://newswise.com/articles/view/543391/

 

http://www.slipstring.com/

 

http://www.mufon-ces.org/text/english/heimphysics.htm

[samtheflash82]

what is this thread even about?

[D H]

what is this thread even about?

Its about physicists trying to take science fiction seriously ...

 

Apparently, when QM is taken into account, warp fields destabilize near c and the inertial bubble becomes irradiated.

http://arxiv.org/abs/0904.0141

 

... maybe.

Semiclassical instability of dynamical warp drives

Stefano Finazzi' date=' Stefano Liberati, Carlos Barceló

(Submitted on 1 Apr 2009)

[Moontanman]

Antoher good FTL theory

 

http://www.metaresearch.org/cosmology/gravity/LR.asp