Do you have optimism that say within the next few hundred years or so (especially once we have a working theory of quantum gravity) we'll be able to make this workable?
I think STL warp may be possible but the FTL aspect not so much.
In the abstract they mention conventional EM sources, but failed to mention exactly how much is required, even if it is conventional
A strong enough EMF in specific layouts could do the bending of space, but any appreciable notions of curvature that could be used as a warp would require ungodly amounts of energy. Even from all the papers I have on the subject nobody has really figured out proper optimizations for this and it may be one of those issues that cannot be solved.
If you are curious about all the papers I have saved and some supplemental videos I have attached a document to this post.
Thanks, Doc, I knew you'd come through on this! I just downloaded the txt file. I assume it includes the March 2021 paper about FTL warp without negative energy too?
This could be one of those things where the amount of energy required for effective FTL is so high because of the cosmic censorship principle, which almost makes it seem like the universe conspires to make this impossible (even though the actual speed never exceeds conventional limits, it's just space that's being manipulated to make it appear so). Just another interesting aspect of the geometry of the universe.