Physicists in China have brought one of Einstein’s thought experiments into reality—but not quite with the outcome he hoped ...

Light has always been the stage on which quantum mechanics performs its strangest tricks, and the double-slit experiment is ...

A single atom as a movable slit: Researchers realize Einstein's thought experiment in original form, observing ...

"Dark photon" theory says light's interference patterns may emerge from quantum particles, not waves, upending centuries of physics.

Scientists in China have performed an experiment first proposed by Albert Einstein almost a century ago when he sought to ...