this post was submitted on 19 Feb 2026
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“Teleporting quantum information is now a practical reality,” asserts Deutsche Telekom. The firm’s T‑Labs used commercially available Qunnect hardware to demo quantum teleportation over 30km of live, commercial Berlin fiber, running alongside classical internet traffic. In an email to Tom’s Hardware, Deutsche Telekom’s PR folks said that Cisco also ran the same hardware and demo process to connect data centers in NYC.

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[–] HubertManne@piefed.social 4 points 12 hours ago (17 children)

I would like to know what the advantages are. I mean whats the point?

[–] ParlimentOfDoom@piefed.zip 9 points 12 hours ago (16 children)

Theoretically, zero latency. If you don't have to wait for a photon to get all the way from one end of a line to another, that can improve a lot of things.

I'm not sure what the fiber is doing here, but if they can get it working without that, they could drive rovers around Mars in real time, instead of waiting the 4-24 minute delay each way when sending/receiving signals.

Or streaming video games could be actually playable instead of frustrating messes.

[–] HubertManne@piefed.social 10 points 12 hours ago (8 children)

Have we ever actually proved it can exceed the speed of light in information travel? I swear I have seen stuff where its theorized the speed of light is also the speed of causality

[–] MatSeFi@lemmy.liebeleu.de 8 points 11 hours ago (1 children)

Nope, the actual information must still be transported via a classical no quantum (and trusted) channel so that both ends can match their statistics and thus deduce the crytographic keys from the qunatum signals. And thats it what its all about: key exchange

[–] HubertManne@piefed.social 1 points 9 hours ago

thanks. I had forgotten about that I think mainly because I can't wrap my mind around how it works like if its intercepted and used then it will confirm that its void and produce a new one or such.

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