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

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

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

For more than a century, the double-slit experiment has been the sharpest test of what reality is made of, and of whether ...