4 ms·

entangled quantum pairs?

• marginalia_nu 5y ago
  You can't send information with quantum entanglement. This is one of the no-go theorems of quantum information: <https://en.wikipedia.org/wiki/No-communication_theorem https://en.wikipedia.org/wiki/No-communication_theorem>
  • intrasight 5y ago
    True. But I think you can at least sync clocks. https://www.nature.com/articles/s41534-018-0090-2 https://www.nature.com/articles/s41534-018-0090-2
  • withinboredom 5y ago
    But you can not send information. Which is information that you didn’t send. Thus, you sent information. This is like saying you can’t send information with electricity. You couldn’t at first (FYI), but then someone invented Morse code and the absence and non-absence of electricity made all the difference in the world.
    • marginalia_nu 5y ago
      You can send information by sending additional information through classical means (thus limited to relativity). This is the basis for quantum cryptography, where you can have a shared one-time pad that is impossible to intercept without detection or and impossible to copy (thanks to the no-cloning and no-teleportation theorems). But you can't send information through quantum entanglement itself without rewriting a significant chunk of physics as we know it. If you're going to do that, all bets are off and you should be consulting with wizards and not physicists.