‘There is no conflict between quantum physics and gravity’: Physicists prove Einstein’s equivalence principle holds true at quantum scales
For the first time, physicists have measured the small quantum shift that an object acquires as it falls through Earth’s gravity, an effect of Einstein’s relativity that was predicted nearly a century ago but never observed. The researchers placed ultracold rubidium atoms in a superposition, a quantum state in which a single particle takes two … Read more
