- #1
timmdeeg
Gold Member
- 1,465
- 285
- TL;DR Summary
- Supposed Alcubierre Warp Drive is possible then which spacetime diagram shows its motion through spacetime?
https://scipost.org/SciPostPhysLectNotes.10/pdf
"Space expands behind the warp bubble and contracts in front of it, thus pushing the bubble forward at velocity v. The ship, which is at rest inside the bubble, moves along with the bubble at an arbitrarily large global velocity."
If the ship moves faster than light this would mean that in a Minkowsky diagram its world line would be straight from the origin to the destination closer to the x-axis than light world lines. This world line line would be spacelike however.
Does this make sense or would another spacetime diagram be more appropriate?
Is the distortion of spacetime produced by the warp bubble a local effect which travels through otherwise flat spacetime (as gravitational waves do) as shown in this visualization?
https://publikationen.uni-tuebingen.de/xmlui/bitstream/handle/10900/48159/pdf/09warp.html
"Space expands behind the warp bubble and contracts in front of it, thus pushing the bubble forward at velocity v. The ship, which is at rest inside the bubble, moves along with the bubble at an arbitrarily large global velocity."
If the ship moves faster than light this would mean that in a Minkowsky diagram its world line would be straight from the origin to the destination closer to the x-axis than light world lines. This world line line would be spacelike however.
Does this make sense or would another spacetime diagram be more appropriate?
Is the distortion of spacetime produced by the warp bubble a local effect which travels through otherwise flat spacetime (as gravitational waves do) as shown in this visualization?
https://publikationen.uni-tuebingen.de/xmlui/bitstream/handle/10900/48159/pdf/09warp.html