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Comment on South Africa and China establish record-breaking 12,900 km ultra-secure quantum satellite link.

ViperActual@sh.itjust.works ⁨3⁩ ⁨weeks⁩ ago

Quantum entanglement/teleportation does not mean information transmission exceeds the speed of light. You’re still limited to sending entangled particles to your destination following the laws of physics. You cannot transmit information via this phenomenon.

What you can use this for is transmission integrity. Where you will know if an outside observer intercepted your transmission then sent it on its way to the destination. This is more commonly known as a man in the middle attack (MitM).

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fyzzlefry@retrolemmy.com ⁨3⁩ ⁨weeks⁩ ago
Adversary in the middle is the updated terminology. Not just because sex, but also bots and AI.

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- ViperActual@sh.itjust.works ⁨3⁩ ⁨weeks⁩ ago
  Ooo thank you, I’m definitely out of date by now
  
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NarrativeBear@lemmy.world ⁨3⁩ ⁨weeks⁩ ago
I always imagined quantum entangled particles would be useful in information transmission. Probably not directly, such as the particles transmiting the information themselves, but in a way potentially vibrating a particle on one end and getting the same vibrations on the other end. Depending on the vibrations you deduced the information.

Obviously sending one of the entangled particles to another destination would be as slow as the fastest mode of transport.

But i wonder if we had a entangled communication device on either of the voyages probes if we would be able to send commands to them from earth with no lag in transmission.

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