Test of a prototype quantum internet runs under New York City for half a month
phys.org
To introduce quantum networks into the marketplace, engineers must overcome the fragility of entangled states in a fiber cable and ensure the efficiency of signal delivery. Now, scientists at Qunnect Inc. in Brooklyn, New York, have taken a large step forward by operating just such a network under the streets of New York City.

But how is the latency for online gaming? It’d be awesome if it’s near instantaneous, or limited only by the net code.

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  • superkret@feddit.orgEnglish
    62·
    2 months ago

    Mom, can we have a quantum-entangled network?

    Mom: No, we have a quantum-entangled network at home.

    Quantum-entangled network at home:

    • TimeSquirrel@kbin.melroy.org
      19·
      2 months ago

      That’s just a demonstration of entropy. Every network rack without an admin to whack techs over the hands with a ruler will eventually look like this.

      Tech 1: wow, I’m am so proud of this work

      Tech 2: hmm, this bundle has a couple wires poking out and going in random directions, I don’t need to pay attention to mine that much.

      Tech 3: huh, racks a bit messy, no problem I’ll just toss this here cable up and over the back

      Tech 4: just drapes it across the floor

      Tech 5: burns it down GOTO tech 1.

    • limonfiesta@lemmy.worldEnglish
      4·
      2 months ago

      Everyone hating on that setup are a bunch of morons.

      There’s a good reason to put your patch panels on a separate rack then all of your switches like that, because eventually you’ll have to roll them around. At which point, you’re going to need some slack in the lines, like when you’re hooking up a tow line to your hitch.

      That’s all I see here: preparedness. Separate racks for switches and patch panels, and a lot of slack for when you got to roll them around, or some shit I don’t know.

      I just know that I see foresight and planning when I look at that picture, not sure why everyone else doesn’t.

    • QuadratureSurfer@lemmy.worldEnglish
      21·
      2 months ago

      That’s a big misconception with what quantum internet is (and what quantum entanglement actually allows for) as explained by this physicist: https://www.youtube.com/watch?v=u-j8nGvYMA8

      Quantum Internet doesn’t mean that you can transmit data faster than the speed of light.

      Quantum Internet just means you get an ultra secure connection, but it’s super susceptible to noise (in other words, you can’t send a lot of data reliably and it would be terrible for that).
      At best this would be useful for being absolutely sure that some encryption keys were sent successfully without being intercepted by anyone else.

      • Eldritch@lemmy.worldEnglish
        5·
        2 months ago

        This is one of the few instances where it’s appropriate to post Sabbine, and she isn’t spreading misinformation. I used to enjoy watching her videos. On topics of physics she’s good. But holy hell some of the shit takes she’s had deviating from the areas she’s educated in.

  • astro_ray@piefed.socialEnglish
    7·
    2 months ago

    With my limited knowledge in the subject, after reading their paper, what I understand is, although they say it like it was a great success, their experiment, in its current state, will fail at scale. But, it is a progress compared to previous methods. Also, photons do not play nice.