If you’re one of the many people who doesn’t quite understand quantum entanglement, the new episode of the University of New South Wales (UNSW) eLearning’s Quantum Around You will change that. Hosted by Associate Professor Andrea Morello from the School of Engineering, this is one of the clearest explanations of the phenomenon we’ve ever seen. And if you already understood quantum entanglement, then, you win.
Even Albert Einstein was sceptical about certain properties of quantum mechanics - specifically, this special type of correlation called entanglement, which he called "spooky action at a distance". But this hasn’t stopped the phenomenon from being observed through many experiments, and becoming central to most work in quantum mechanics.
Essentially quantum entanglement suggests that acting on a particle here can instantly influence a particle far away, something that is often described as theoretical teleportation. And the implications are HUGE for quantum mechanics and quantum computing. But if it’s so complicated that not even Einstein could get his head around it, how do you explain it on YouTube?
As Morello shows in this fantastic video, the best way is to first explain what it’s not: classical correlation. And this can be done using a simple piece of paper and a red and blue text.
Watch the episode above and have your mind expanded.