Essentially what’s going on to make this super safe call happen is rooted in the laws of quantum mechanics, entanglement, and superposition. Individual particles act as both specks and waves simultaneously, with a list of possible properties. If you make these particles interact with one another, the mathematics of quantum mechanics requires that you describe them using the same equation—even if you separate them over large distances. If you entangle a pair of light particles and separate them, measuring one automatically implies what the other one should be.
This is often described as “spooky action at a distance,” but it’s not really that spooky, especially considering how it was used here: to share encryption keys to ensure no one was eavesdropping on the call. Entangling photons over a long distance means that you share a link—but if there’s an eavesdropper on the communications line, then the laws of quantum mechanics causes these particles to lose their spooky connection. The scientists use this link to set up a secure line.
Basically, Micius sends entangled photons to two stations, one in Austria and the other into China, encoded with specific polarizations (the direction of the light wave’s wobble) as the security check. The scientists make measurements of the polarizations and then send back their measurement information, which the satellite reviews to ensure that there hasn’t been a collapse of the entanglement. It then creates the security keys, which the stations can use to encrypt and decrypt the data contained in the video call, according to an Austrian Academy of Sciences
press release.
I see you either know nothing at all about China or you're an alt-right troll pushing the "homogeneous societies" meme.
Obama’s was black... has China had a non Chinese leader?
