3 ms·

Not really, unless you stick with the Copenhagen interpretation. There are others. I don't think it's a coincidence that going on a century of experimentation

Not really, unless you stick with the Copenhagen interpretation. There are others. I don't think it's a coincidence that going on a century of experimentation with entanglement has yet to yield even a theoretical mechanism for transferring information.

roywiggins 8y ago
There's even a theorem that transferring information with entanglement is impossible according to quantum theory as we know it. https://en.m.wikipedia.org/wiki/No-communication_theorem https://en.m.wikipedia.org/wiki/No-communication_theorem
- hellofunk 8y ago
  Then how does this work? https://phys.org/news/2017-07-physicists-transmit-earth-to-space-quantum-entanglement.html https://phys.org/news/2017-07-physicists-transmit-earth-to-s...
  - vacuum_collapse 8y ago
    You need a classical information channel in combination with quantum entanglement. This is explained here for example: https://en.m.wikipedia.org/wiki/Quantum_teleportation https://en.m.wikipedia.org/wiki/Quantum_teleportation Because you need the classical information channel you are still limited by the speed of light and hence cannot transmit information faster than light.
hellofunk 8y ago
There have been many successful experiments transferring data between entangled particles. Here is one: https://phys.org/news/2017-07-physicists-transmit-earth-to-space-quantum-entanglement.html https://phys.org/news/2017-07-physicists-transmit-earth-to-s... “...quantum teleportation allows faithful transfer of unknown quantum states from one object to another over long distance, without physical travelling of the object itself. Long-distance teleportation has been recognized as a fundamental element in protocols such as large-scale quantum networks and distributed quantum computation. However, the previous teleportation experiments between distant locations were limited to a distance on the order of 100 kilometers...”
- jjoonathan 8y ago
  That's not faster than light. The wiki article clarifies: https://en.wikipedia.org/wiki/Quantum_teleportation https://en.wikipedia.org/wiki/Quantum_teleportation

roywiggins 8y ago

There's even a theorem that transferring information with entanglement is impossible according to quantum theory as we know it. https://en.m.wikipedia.org/wiki/No-communication_theorem https://en.m.wikipedia.org/wiki/No-communication_theorem

hellofunk 8y ago
Then how does this work? https://phys.org/news/2017-07-physicists-transmit-earth-to-space-quantum-entanglement.html https://phys.org/news/2017-07-physicists-transmit-earth-to-s...
- vacuum_collapse 8y ago
  You need a classical information channel in combination with quantum entanglement. This is explained here for example: https://en.m.wikipedia.org/wiki/Quantum_teleportation https://en.m.wikipedia.org/wiki/Quantum_teleportation Because you need the classical information channel you are still limited by the speed of light and hence cannot transmit information faster than light.

hellofunk 8y ago

There have been many successful experiments transferring data between entangled particles. Here is one: https://phys.org/news/2017-07-physicists-transmit-earth-to-space-quantum-entanglement.html https://phys.org/news/2017-07-physicists-transmit-earth-to-s... “...quantum teleportation allows faithful transfer of unknown quantum states from one object to another over long distance, without physical travelling of the object itself. Long-distance teleportation has been recognized as a fundamental element in protocols such as large-scale quantum networks and distributed quantum computation. However, the previous teleportation experiments between distant locations were limited to a distance on the order of 100 kilometers...”

jjoonathan 8y ago
That's not faster than light. The wiki article clarifies: https://en.wikipedia.org/wiki/Quantum_teleportation https://en.wikipedia.org/wiki/Quantum_teleportation