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Why is it not a big deal that we quantum teleported a photon into space?
| Adamo Tuti | 07/22/26 |
| me mum died in the holly (TT6) | 07/22/26 |
| Adamo Tuti | 07/22/26 |
| me mum died in the holly (TT6) | 07/22/26 |
| me mum died in the holly (TT6) | 07/22/26 |
| The Penis | 07/22/26 |
Poast new message in this thread
Date: July 22nd, 2026 1:37 PM Author: Adamo Tuti (⚖️) Taking some liberties with that headline but my unerstanding is that scientists teleported a particle's quantum information/instruction set/quantum state from Earth to a setellite about ~1k miles away. This happened almost 10 years ago.
They created two entangled photons - Photon A & Photon B - A stayed on earth, B traveled to the satellite.
There is a third photon (C) which contains the quantum state they want to basically teleport. Scientists perform something called a Bell-state measurement.
Without getting too mathematical (I am retarded)...
They measure Photon A and Photon C together - that measurement destroys their original states.
But because A was entangled with B..."nature" forces Photon B (on the satellite) into a state that's related to Photon C.
After scientists send two ordinary classical bits of information to the satellite, the satellite performs a tiny correction. Now.. Photon B has become exactly the quantum state Photon C originally had.
Not approximately - exactly. The original state on Earth no longer exists anywhere but space. |
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Date: July 22nd, 2026 1:39 PM Author: me mum died in the holly (TT6) people won the Nobel Prize in Physics for entanglement a few years ago.
Also, no mass was transported. |
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Date: July 22nd, 2026 1:41 PM Author: Adamo Tuti (⚖️) what are some of the less obvious implications of quantum entanglement?? (http://www.autoadmit.com/thread.php?thread_id=5885129&forum_id=2:#50016988) |
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Date: July 22nd, 2026 1:52 PM Author: me mum died in the holly (TT6) honestly, there has been no way to be able to use it to transmit information.
it shows that quantum isnt just a local/very small world thing. its most visible there, but clearly runs the entire universe. |
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Date: July 22nd, 2026 1:56 PM Author: me mum died in the holly (TT6) chatgpt agreed with me: Nature is nonlocal but cannot transmit information faster than light. Correlations appear instantly across distance, but each local result is random, so usable communication still requires an ordinary classical channel.
Also they added: The deepest implication is probably that reality cannot always be decomposed into independent objects with their own complete local properties. The whole can contain information that none of its individual parts possesses.
^^ thats a good point |
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Date: July 22nd, 2026 2:13 PM Author: The Penis An entangled pair can be in a perfectly definite global state while each component separately has a maximally indefinite local state. This permits quantum data hiding. Information can be encoded in global correlations so that separated parties obtain almost nothing through local measurements, while a joint measurement recovers the information.
Also information can exist without being located in any component. Quantum error correcting codes exploit this directly. A logical qubit can be distributed across many physical qubits such that no single qubit contains the encoded information, but sufficiently large or appropriately selected subsets can reconstruct it.
Plenty of other ones too. |