Can a photon be caught behaving like a wave and a particle in the same run of an experiment? For almost a century, that ...

Scientists in China have performed an experiment first proposed by Albert Einstein almost a century ago when he sought to disprove the quantum mechanical principle of complementarity put forth by ...

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

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