Quantum entanglement is one seriously long-distance relationship. Quantum entanglement is a fascinating, counterintuitive phenomenon where two subatomic particles remain deeply connected ...

The photo shows a strong form of quantum entanglement, where two particles interact and share their physical states for an instant. It occurs no matter how great the distance between the particles is.

This phenomenon confounded even the most brilliant of minds, including Albert Einstein, who called quantum entanglement ...