No they just wrote it down. These are not experimental papers. A smallest possible scale experiment would the logical follow up, unless some GR expert shoots

No they just wrote it down. These are not experimental papers. A smallest possible scale experiment would the logical follow up, unless some GR expert shoots holes in the models on paper first. Edit: ftl is not the experiment in question. Simply demonstrating some minuscule effect due to manipulated spacetime curvature would Be quite enough! (Enough to be a huge deal, even if it’s not even useful practically, for the foreseeable future)