Researchers find a way to shield quantum information from "noise."Credit: Wits University, edited
Posted on 03/28/2025 6:24:38 PM PDT by SunkenCiv
In a study published on March 26 in Nature Communications, the team showed that certain quantum states can retain their essential information even when exposed to environmental "noise" that would normally disrupt them...
Quantum entanglement, the strange connection that allows particles to instantly affect each other regardless of distance, is central to many quantum technologies...
But despite its promise, entanglement is extremely fragile. In real-world settings, it can quickly break down due to background light, stray signals, imperfect detectors, or lost photons. These forms of environmental noise can sever the connection between entangled particles, making them useless for transmitting quantum information...
To overcome this, many strategies have been put forward to try and preserve the entanglement, but so far with very limited success. The Wits team has shown that this approach can be manipulated, allowing the entanglement to remain fragile and instead preserve the quantum information...
The researchers discovered that by engineering quantum states with specific topological properties, they could preserve quantum information even when the entanglement between particles begins to break down...
The team believes that just as digital technology has enabled successful classical computation and communication, so too will digital quantum signals allow successful quantum computation and communication under realistic conditions without the need for compensating strategies.
(Excerpt) Read more at scitechdaily.com ...
Researchers find a way to shield quantum information from "noise."Credit: Wits University, edited
Thanks for the link. This topic seems likely to be analogous to a treeful of crap-flinging monkeys. :^) Y'know, that would have been a better title for that book...
“lost photons”
Sounds like a promising TV Show.
Maybe the Dept. of Energy should put their Top Men on it.
Says how topology is so important, but doesn’t say anything about the topology. Now one has to go read the paper.
I’ll wait until I read about it as an article in Physical Review...
Nature isn’t the best source for good science...
Ursula K. Le Guin’s ansible. Uses quantum entanglement to set up instantaneous communications between any two points in space
Are there photon containment boxes that are commercially available?
“lost photons”? I’d be more worried about added photons.
Photon packing?
What will the ‘Rats think of next?
AOC needs to come clean.
"Sounds like a promising TV Show."
I liked her odd takes on sci-fi’s various standard hokus pokus.
Call it “Ghost Photons” and have hundreds of zombies and vampires in it, and it would probably go on for ten years. ;^)
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