Now, two unrelated-but-similar experiments confirm that, in a double-slit experiment, detection of a photon’s path (its ...

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

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

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

Two newly published experiments have resolved one of quantum physics’ most iconic disputes.

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

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

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

A photon was apparently detected in two places at once in a twist on the classic double-slit experiment, but many physicists ...

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

Quantum theory and Einstein's theory of general relativity are two of the greatest successes in modern physics. Each works ...

After four centuries of advances, astronomers now capture the Sun’s swirling, dynamic features in stunning detail.