4 ms·

Really? For me it looks overly complicated and going in circles. After all it boils down to: "You have two boxes that generate exact same sequence of random bit

• augustl 11y ago
  I tend to read it as the steps taken in a thought process to try to use quantum entanglement to achieve FTL communication. Personally this is one of my favorite learning methods, since you go through the motions of a discoverer rather than getting the finished thought served. The book "About Time" (Davies 1995) is written like this, and I love it :)
• mmusson 11y ago
  No the idea is pretty simple. You give entangled particles to Alice and Bob who are a non-trivial distance away from each other. Alice performs an operation to send a bit of information to Bob via the entangled property. Bob still gets random results from his measurements. If Bob saw a signal instead of randomness this would be FTL communication. Instead Bob and Alice compare notes after the fact and Bob finds that if he knows what Alice did, now he can find a signal in his data. This after the fact comparison is what scuttles FTL communication. Bob doesn't know anything until after the "sub-light" communication. Alice could instead transmit her information using "sub-light" communication to Bob at the same time she performs the entangled operation, but Bob still doesn't know anything (measurements look random) until the "sub-light" information reaches him.