Quantum Teleportation Survives Thru Busy Internet Cables

Sunday, December 22, 2024

An experiment showing that quantum and classical communication can be carried out through the same fibre at the same time may open the door to building a quantum internet with existing infrastructure. 20 December 2024

Posted by Corky at 10:30 PM | 6 COMMENTS | permalink | Comment on This Entry |

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To build a quantum internet, we thought we'd need a huge amount of new cables to carry fragile signals - but a new experiment shows quantum teleportation can survive in busy internet cables www.newscientist.com/article/2461 ...

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-- New Scientist (@newscientist.bsky.social) December 20, 2024 at 3:59 PM

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OK, so the thread link has a paywall now, so here's the BBC...

"Nobody thought it was possible': Quantum teleportation is here

A breakthrough in quantum physics could pave the way to achieving a quantum Internet."

www.sciencefocus.com

Original:

www.mccormick.northwestern.edu

Pretty cool stuff. I got to the Silicon Valley in the early 80's and saw lots of new tech, but this is impressive.

#1 | Posted by Corky at 2024-12-20 05:17 PM | Reply

@#1 ... OK, so the thread link has a paywall now, so here's the BBC...

And ScienceDaily ...

First demonstration of quantum teleportation over busy Internet cables
www.sciencedaily.com

#2 | Posted by LampLighter at 2024-12-20 08:20 PM | Reply

@#2

From the link ...

... Quantum teleportation could provide near-instant communication over long distances.

But, inside Internet cables, photons needed for teleportation are lost within the millions of light particles required for classical communications.

A new study quantified light scattering to find exact areas to place photons to keep them safe from other particles. The approach successfully worked in experiments carrying regular Internet traffic. ...

Whoa, "exact areas to place photons?" They are diddling with where photons hide?

#3 | Posted by LampLighter at 2024-12-20 08:25 PM | Reply

imo, this is way cool. And underappreciated.

If this pans out, it could change things..

Significantly

#4 | Posted by LampLighter at 2024-12-22 11:51 PM | Reply

so, it's just faster?

#5 | Posted by ichiro at 2024-12-23 03:02 PM | Reply

only one aspect is faster at this time, and it's not "faster" it is instantaneous. All the beforehand set up and staging is considerable.

#6 | Posted by YAV at 2024-12-24 08:39 AM | Reply