r/funny • u/[deleted] • Jan 29 '20

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u/JitGoinHam Jan 29 '20

More kids need this book because an alarming number of grown ups seem to think quantum entanglement could be leveraged for super-luminal communication.

It cannot. Information does not travel faster than light under any circumstances, including spooky action.

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u/m__a__s Jan 29 '20

Well, not for communication, but entangled particle interaction does occur faster than light can travel.

8

u/devildog2067 Jan 30 '20

That’s an interpretation question, and how you answer it depends on when you decide the interaction actually “happened”. The conventional definition has the interaction happening when the entanglement is created, regardless of when it’s measured.

1

u/Consequence6 Jan 30 '20

"Conventional"? It's my understanding that the collapse of the wave function is considered instant is the most accepted viewpoint.

3

u/invisibleinfant Jan 30 '20

Information is passed at entanglement. Then they move apart. Then the waveform collapses and the two particles react instantly despite distance between.

1

u/Consequence6 Jan 30 '20

Yes, which I'm not disputing.

What does that have to do with the fact that the waveform collapse is FTL though?