Can We Send Information FTL Through Entanglement?

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I know its been asked a lot of times, but reading all those threads convinced me that through entanglement we can not send information faster than light (FTL). We can just correlate the result of random experiments.

Nevertheless, reading this articles (and a lot of other similar articles):
http://www.technologyreview.com/view/507531/first-teleportation-from-one-macroscopic-object-to-another/

I noticed that quantum - teleportation, which I think works through entanglement, can send information FTL (in fact, instantly).

So, can we send information instantly or not? And, if not, what is quantum teleportation?

Or, in other words, What did I misunderstand?

Thanks
 
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the_pulp said:
I noticed that quantum - teleportation, which I think works through entanglement, can send information FTL (in fact, instantly).

So, can we send information instantly or not? And, if not, what is quantum teleportation?

What you are teleporting is a state. Generally, that state is undefined. So yes, you can teleport from one spacetime region to another outside the normal limits. But there is no classical information being transferred in this process. So no FTL signal.
 
DrChinese said:
What you are teleporting is a state. Generally, that state is undefined. So yes, you can teleport from one spacetime region to another outside the normal limits. But there is no classical information being transferred in this process. So no FTL signal.

Actually quantum teleportation does not work by entanglement alone, but also needs a transfer of classical information to be completed. So even quantum teleportation can not transfer states faster than light.
 
Insights auto threads is broken atm, so I'm manually creating these for new Insight articles. Towards the end of the first lecture for the Qiskit Global Summer School 2025, Foundations of Quantum Mechanics, Olivia Lanes (Global Lead, Content and Education IBM) stated... Source: https://www.physicsforums.com/insights/quantum-entanglement-is-a-kinematic-fact-not-a-dynamical-effect/ by @RUTA
If we release an electron around a positively charged sphere, the initial state of electron is a linear combination of Hydrogen-like states. According to quantum mechanics, evolution of time would not change this initial state because the potential is time independent. However, classically we expect the electron to collide with the sphere. So, it seems that the quantum and classics predict different behaviours!
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