Comment on Oxford scientists achieve teleportation with quantum supercomputer

ReanuKeeves@lemm.ee ⁨1⁩ ⁨day⁩ ago

• knightly@pawb.social ⁨1⁩ ⁨day⁩ ago

  Think of it like an identical pair of Shrodinger’s Cats. You can’t know if the cat is alive or dead 'til you open the box, but because they’re identical you know that the other box will show the same result as your own.

  The lasers don’t transmit information, they transmit quantum randomness. The act of measuring this randomness creates information, and because the photons are entangled this information includes what was received at both ends.

  So the photons that carry the information aren’t teleported, but the information itself is because it doesn’t exist until it is observed.

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  • ReanuKeeves@lemm.ee ⁨1⁩ ⁨day⁩ ago

    That sounds like complete garbage though, if those qbits are still in superposition then it hasn’t changed from being both 1 and 0. All that means is that nothing has really between the two points and the teleportation is theoretical.

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    • knightly@pawb.social ⁨1⁩ ⁨day⁩ ago

      It might be counterintuitive, but that’s genuinely how quantum systems work.

      The entangled photons are in a state of quantum superposition until they are measured, and that measurement creates information about the state of both photons.

      It’s not a process that can be used to transmit information, it’s a process that transmits identical random numbers to two places at once that can’t be intercepted without breaking either their identicalness.

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      • ReanuKeeves@lemm.ee ⁨1⁩ ⁨day⁩ ago

        I understand quantum entanglement is a real thing but in this article, you click on where it says quantum teleportation and it tells you what they do is use laser patterns and no mention of quantum entanglement, it just sounds like fiber optics minus the fibers.

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• Bronzebeard@lemm.ee ⁨1⁩ ⁨day⁩ ago

  Where’s it say they used a laser to transfer the information? This sounded like quantum entanglement was being demonstrated here

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  • ReanuKeeves@lemm.ee ⁨1⁩ ⁨day⁩ ago

    It says it in the article

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    • Bronzebeard@lemm.ee ⁨1⁩ ⁨day⁩ ago

      The word laser does not appear once in this article.

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      • ReanuKeeves@lemm.ee ⁨1⁩ ⁨day⁩ ago

        Dude, click on where it says quantum teleportation…

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