For the First Time, Humans See Quantum Entanglement With the Naked Eye

For the First Time, Humans See Quantum Entanglement With the Naked Eye | Popular Science

Physicists at the University of Geneva in Switzerland have devised a new kind of quantum experiment using humans as photon detectors, and in doing so have made the quantum phenomenon of entanglement visible to the naked eye for the first time.

For those that need a primer, entanglement is that strange quantum phenomenon that links two particles across distances such that any any measurements carried out on one particle immediately changes the properties of the other--even if they are separated by the entire universe. Einstein called it “spooky action at a distance.” And indeed it is weird.