What Is Entanglement and Why Is It Important? - Caltech Science Exchange Entanglement is at the heart of quantum physics and future quantum technologies Like other aspects of quantum science, the phenomenon of entanglement reveals itself at very tiny, subatomic scales When two particles, such as a pair of photons or electrons, become entangled, they remain connected even when separated by vast distances
What is Quantum Entanglement? NASA Science In 1935, Albert Einstein and colleagues first pointed out the “spooky” action of quantum entanglement Quantum entanglement, however, appeared to conflict with Einstein’s theory of special relativity, which postulates that nothing can travel faster than the speed of light and is demonstrated mathematically by the well-known equation E=mc2