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So recently I watched a MinutePhysics explanation of quantum teleportation. Recently I have also been asking questions about quantum entanglement, and the answer I am most often getting is faster than light communication is not possible.

In the video by MinutePhysics, he talks about how by having two entangled particles then entangling the thing you want to teleport with one of the entangled particles you can teleport the thing’s state to the second entangled particle.

To me this sounds like communicating the thing you want to teleport’s state faster than the speed of light. Is it though?

Anish Kommireddy
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The reason is because it is not actually "communicating" any new information at all.

Think about it. If I flipped a coin and it came up "heads" would you say, "Ah! What an interesting message!" No, because that is an expected outcome that doesn't give any new information.

The "spooky action at a distance" of entanglement is not useful for communication, because without comparing the results of both sides (at standard light-speed and lower rates) the outcome is meaningless.

JDUdall
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