cross-posted from: rss.ponder.cat/post/16876
Sabine Hossenfelder has a PhD in Physics and gives some good information about what quantum internet is, and what it is not: www.youtube.com/watch?v=u-j8nGvYMA8
Basically, this is not a means of transferring data faster than the speed of light.
It does allow for an ultra secure connection, but that connection is so fragile and susceptible to noise that this would not be useful for transferring any large amounts of data.
Most likely this would be used for exchanging keys/tokens which could then be used with a more reliable connection for transmitting larger amounts of data.
charonn0@startrek.website 2 months ago
What exactly are they trying to accomplish? The article talks about sending entangled photons down a fiber optic… but that just sounds like ordinary fiber with extra steps.
YtA4QCam2A9j7EfTgHrH@infosec.pub 2 months ago
I’m guessing for quantum cryptography. It would allow you to have perfect crypto (assuming the non quantum hardware isn’t hacked (a big if)).
Sekoia@lemmy.blahaj.zone 2 months ago
You can have post-quantum cryptography using classical computation, though
(“Simply” pick a problem with no quantum acceleration. I think Elliptic Curves Cryptography works, but I’m not an expert)
teft@lemmy.world 2 months ago
Quantum networks allow you to transmit quantum states between physically separated quantum processors.
The_Che_Banana@beehaw.org 2 months ago
Extra quantum steps