Comment on Oxford scientists achieve teleportation with quantum supercomputer

• knightly@pawb.social ⁨1⁩ ⁨day⁩ ago

  The optics are just the medium through which the qubits are entangled, the interesting part isn’t the lasers but the interaction between physically-separated qubits.

  You could theoretically accomplish the same thing by physically bonking the qubits together so that they interact via nuclear forces instead of the electromagnetic field, like they did with entire molecules at Durham University a few weeks back: www.msn.com/en-us/news/technology/…/ar-AA1xfHI9

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  • ReanuKeeves@lemm.ee ⁨1⁩ ⁨day⁩ ago

    Well you can’t say it’s teleportation without transmitting data but also say they use fiber optics as a medium. This is about as much teleportation as my fiber optic internet connection.

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    • knightly@pawb.social ⁨1⁩ ⁨day⁩ ago

      It is teleportation, but the thing being teleported is information about a quantum state.

      The particles that carry this information are in a quantum superposition, like Shrodinger’s Cat. Because of quantum physics, the information they carry doesn’t exist until you open the box and measure it.

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      • ReanuKeeves@lemm.ee ⁨1⁩ ⁨day⁩ ago

        In this context, the article describes quantum teleportation as “teleport information so that it never physically travels across the connection”

        So why would we need a physical medium like fiber optics? Do they not use that to transfer the information between qubits? Because that’s what it’s reading as. I understand the superposition of qubits but why is that relevant when at the end of they day, they are transfering information through a medium? In quantum entanglement you wouldn’t need any medium so it’s technically a form of teleportation. I don’t see how optics transferring information whether it’s superpositioned or not would be the same.

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