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

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

Quantum mechanics is weird. When you think you have reached the bottom of its weirdness, you always discover a new ...

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

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

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

Classical Physics (Physics established mostly by Newton), has one property that we may think that is universal, which is, certainty. For example, by using the mathematics of Newton, we can precisely ...

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

Physicists using the SOLEIL synchrotron in France are the closest yet to realizing a thought experiment first proposed in 1927 by Albert Einstein. A variation on the much-loved double-slit experiment, ...