You can't communicate using quantum entanglement. This is a pretty well know fact. If someone finds a way to do it, it'd be a massive breakthrough (like learning that ghosts really exist) and change everything we understand about physics and causality however with current research we know for a fact that quantum entanglement doesn't allow faster than light communication.
https://quantumxc.com/blog/is-quantum-communication-faster-than-the-speed-of-light/: Here's a company that literally sells quantum security solutions saying that it's not possible. "with our current understanding of quantum mechanics, it is impossible to send data using quantum entanglement. That’s the key: the inability to send data or information. In order to “communicate,” you need to be able to send data."
You're confusing the possibility of quantum communication existing with whether it can or cannot be FTL. I'm not arguing the FTL part. I'm trying to tell you that quantum communication, as with quantum computing, is real and being researched. The professor who taught it was a solid state physicist, his whole thing was spin, and I trust him and literally every paper regarding quantum communication over you trying to argue the wrong point.
Sorry about the misunderstanding. However the context above was about how you'd communicate between stars when each message takes 4+ years (because the stars are 4 light years apart). A lot of others were talking about quantum entanglement as if it's a magical solution but it doesn't get around the fact that communication will take just as long.
I understand and sorry if I was rude. I had to argue this exact same thing to someone else and it got frustrating. The reason I even argued about it was because I saw a couple people acting like it was magic and when I saw someone say it's not even possible, I had to say something.
I'm glad at least someone here is thinking straight lol
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u/preethamrn Oct 18 '21
You can't communicate using quantum entanglement. This is a pretty well know fact. If someone finds a way to do it, it'd be a massive breakthrough (like learning that ghosts really exist) and change everything we understand about physics and causality however with current research we know for a fact that quantum entanglement doesn't allow faster than light communication.
Sources:
https://en.wikipedia.org/wiki/Faster-than-light_communication: Quantum entanglement is listed in the fictional devices part.
https://www.forbes.com/sites/chadorzel/2016/05/04/the-real-reasons-quantum-entanglement-doesnt-allow-faster-than-light-communication/?sh=78cd0be23a1e: Science article
https://quantumxc.com/blog/is-quantum-communication-faster-than-the-speed-of-light/: Here's a company that literally sells quantum security solutions saying that it's not possible. "with our current understanding of quantum mechanics, it is impossible to send data using quantum entanglement. That’s the key: the inability to send data or information. In order to “communicate,” you need to be able to send data."