Where’s it say they used a laser to transfer the information? This sounded like quantum entanglement was being demonstrated here
Comment on Oxford scientists achieve teleportation with quantum supercomputer
ReanuKeeves@lemm.ee 2 months ago
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Bronzebeard@lemm.ee 2 months ago
ReanuKeeves@lemm.ee 2 months ago
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knightly@pawb.social 2 months 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.
ReanuKeeves@lemm.ee 2 months ago
knightly@pawb.social 2 months 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.
ReanuKeeves@lemm.ee 2 months ago