That quantum mechanics is weird is now proven by Chinese scientists who tested what Albert Einstein called “spooky action at a distance”. Quantum entanglement by which pairs or groups of particles are generated or interact in ways such that the quantum state of each particle cannot be described independently of the others, even when the particles are separated by a large distance.
That is, even if entangled objects are separated, their precarious quantum states remain linked until one of them is measured or disturbed. Enabling instant communication across vast distances, Star Trek ‘subspace’ anyone?
A new study shows China’s growing mastery of both the quantum world and space science, with a team of physicists sending eerily intertwined quantum particles from a satellite to ground stations separated by 1,200 kilometers.