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Re:Researchers quantum teleport particle of light six kilome... by bduerst on Wednesday September 21, 2016 @05:30PM (#12552436)
> The particles when measured will result in the other particle ending up in the opposite of the measured state, and this inversion persists even if we do operations that preserve the quantum state.

This is the part that I don't get - what's the physics mechanism behind this? It sounds very Schrodinger's cat.

It also sounds like a great way to tell if your information has been unknowingly accessed when it's travelling between two supposedly secure locations.

Re:Researchers quantum teleport particle of light six kilome... by johncolanduoni on Wednesday September 21, 2016 @05:57PM (#12552638)
Outside of the realm of speculative theories about how measurement works (none of which have managed to really shed any light on the matter yet), there's not much known here other than "that's what happens when you use the prescribed rules for measuring a quantum system on a particular quantum state we call entangled." I promise if we ever get a concrete answer to that question it'll get posted to HN shortly thereafter XD.

> It also sounds like a great way to tell if your information has been unknowingly accessed when it's travelling between two supposedly secure locations.

That's actually one of the currently possible applications of quantum mechanics to cryptography[1]. There are already multiple commercial implementations!

[1]: https://en.wikipedia.org/wiki/Quantum_key_distribution