Particle teleportation across Calgary marks 'major step' toward creation of 'quantum internet' - Calgary - CBC News: In a "major step" toward practical quantum networking, researchers at the University of Calgary have successfully demonstrated the teleportation of a light particle's properties between their lab and the city's downtown area, six kilometres away.
It doesn't exist yet, but the dream of a "quantum internet" involves taking advantage of a key element of quantum mechanics — the fact that observing a particle's quantum state changes that particle's quantum state. This creates the opportunity to communicate with a degree of security never before possible, because no one can intercept a communication without the intended receiver of the information knowing about it.A couple of takeaways here:
- A light-based Internet protocol will require fiber optic to the premise (FTTP) communications infrastructure. The metallic infrastructures of the legacy telephone and cable companies that dominate today aren't going to cut it. (A bonus: fiber is non-conducting and thus invulnerable to high energy solar flares.)
- Quantum-based encryption as described here looks even more hack proof that the current cutting edge blockchain technology.