Recreate dark energy's space but not time warp in a lab
Background about dark energy
This is a project to create an experiment to recreate dark energy in the lab. It is based on the idea that dark energy makes space expand at an accelerating rate, and that the fact that the acceleration is observable shows that it does not create new time to the same extent as it creates new space. If time expanded like space, the ultrarapid effect would make the expansion of the Universe appear to slow down. That is, dark energy affect space but not time.
Difference from gravity
While gravity warps space-time, gravity warps both space and time, dark energy warps only space. While gravity causes time dilation, dark energy causes no time dilation. Since gravity's distortion of space-time make objects fall by making one way through the space-time diagram longer than another, dark matter with its lack of time dilation does not make things fall in any direction.
Doing the experiment
Gravity detectors and what does not work
The fact that dark energy does not influence fall means that gravimeters such as heavy wights suspended on a hanging scale, which are used in experiments on modifying gravity, are useless for testing recreated dark energy. It is possible that some artificial gravity experiments or anti-gravity experiments only failed to create gravity or anti-gravity but successfully created dark energy, just that they failed to measure it. Other equipment will be needed.
Lasers and what might work
While dark energy does not cause objects to fall, it still affects the shape of space in ways that make things (including light) change their course when they pass through. That means pointing a laser through the possible dark energy and testing if it changes its course from what would otherwise be predicted can be used to make detections. Since a small change in course leads to a greater difference in where the laser beam end up the further the laser beam travels after passing through warped space, the experiment should be set up so that the experimental dark energy device is close to the laser but far from the laser detector. That makes smaller warps easier to detect.
Ruling out error sources
Ruling out the error sources is important in any scientific experiment. Though the experiment, if successful, will not detect any true gravity or antigravity effect (at least none that corresponds to all the change in the laser beam trajectory, though some noise besides it may be acceptable), a gravitometer is still advisable to rule it out. A successful experiment should detect a change in the course of the laser beam, but no change in the apparent weight of an object.
This is also useful to rule out disruption caused by gravity waves or vibrations.