Fermilab's Holometer experiment

Now that we discovered the particle that gives mass to everything,what's next?....In 2008, Fermilab particle astrophysicist Craig Hogan made waves with a mind-boggling proposition: The 3D universe in which we appear to live is no more than a hologram.
Now he is building the most precise clock of all time to directly measure whether our reality is an illusion...A team of physicists, technicians and interns work to get Fermilab's Holometer operational. The stakes are high - the Holometer may prove or disprove that our universe is really two dimensions...Imagine that the universe is a hologram, that everything is 2D, not 3D, and that your own vision is a part of a grand illusion. Now imagine a dinky trailer on the prairie and a band of physicists pondering the universe inside, puzzling out a way to prove or disprove whether the world is flat... The Fermilab project is mining the same field as string theory, a murky and complex field of physics theorizing how gravity and particles may interact.In what can be called a seminal test of string theory, the Holometer will measure gravitational waves at a scale smaller than any technology of its kind has yet been capable of doing. When looking at waves at such a small scale, quantum mechanics and general relativity no longer apply, making it possible to see whether the universe is flat and everyone's eyes are playing tricks on them...There's a lot that's odd about the Holometer. For a piece of equipment that will soon be the most sensitive of its kind in the world, it's not exactly receiving the red carpet treatment.The project is proceeding on a $2 million budget (miniscule by most lab standards) and the laser itself is being built to run in a tunnel abandoned from previous research..In simplest terms, the Holometer is a laser beam with a set of end mirrors and a beam splitter in this big tunnel, along with something called a photodiode, which converts light into voltage. The project has been in the planning stages for three years, but now the Holometer is at last taking shape and could start operating this year..