“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.
I would like to know what the advantages are. I mean whats the point?
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.
The fiber is there because the data is being sent through the fiber as photons like usual. There is no zero latency happening at all and it will not allow rovers to be controlled remotely in real time. That would break causality. This has more to do with encryption and the inability to wiretap without detection.
So…not entanglement at all, then.
Well, it is still using entanglement. It’s just not using it to transmit the data. More like a checksum.
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
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
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.
God damn it, they’re going to use this to force cloud gaming on us.
The lack of affordable consumer: harddrives, ssds, RAM, and gpus will do that long before they get this working.
But latency is the determining factor in cloud gaming, not the hardware. The speed of light is the bottleneck.
I mean, if you have enough hardware in the form of giant power-sucking data centers in every town, the latency could get pretty low! /s
I’m aware. It’s a trash experience currently. But that won’t stop them from pushing it anyway, now that personal machines are being priced out of the market.
Not just latency, but any connection at all. Somewhere there’s no signal, like in a submarine.