Experiments generate quantum entanglement over optical fibres across three real cities, marking progress towards networks that could have revolutionary applications.

Experiments generate quantum entanglement over optical fibres across three real cities, marking progress towards networks that could have revolutionary applications.

  • DudeDudenson@lemmings.worldEnglish
    47·
    6 months ago

    It pisses me off that they’re calling quantum data transmission quantum entanglement, it’s not the same thing and it’s misleading as fuck.

    Quantum entanglement is about two quantum particles sharing the same state which if implemented somehow would allow for universal communication with no time lag. Sending quantum state communication through fiber optic, while an achievement for distributed quantum computing, is not quantum entanglement!!

    • fed0sine@lemm.eeEnglish
      10·
      6 months ago

      Man, reading the title I thought quantum entanglement had finally arrived and I clicked that shit so fast 😂

    • VindictiveJudge@lemmy.worldEnglish
      8·
      6 months ago

      Quantum entanglement communications also have fundamental problems that will likely render them effectively unusable. You need a key to decrypt anything you send, and the key has to travel no faster than c. It’s impossible to tell the data from the noise without the key. Attempting to read the data or to change the data being sent also collapses the effect, which can only be fixed by bringing the two systems together. In short, you can only send a single packet of data and you can’t use it without a key transmitted using traditional methods.