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Originally posted by Umbrax
Scientists from Georgia Institute of Technology and Harvard have transmitted a photon between atomic clouds, stored it, and then retrieved it intact.
This accomplishment has the potential to store and process information using atoms and photons.
Georgia Institute of Technology and Harvard scientists say they've transmitted a photon between atomic clouds, stored it, and then retrieved it intact.
The accomplishment reportedly marks a significant step towards realizing a quantum communication or computation network, which would store and process information using atoms and photons.
Classical light pulses are already used to carry information through optical fibers. But such signals must be periodically boosted using a "repeater," which would destroy any quantum information carried by individual photons of light.
But Alex Kuzmich and colleagues at the Georgia Institute of Technology and Matthew Eisaman and colleagues at Harvard University report effectively creating a basis for a "quantum repeater," potentially allowing quantum information to be carried over long distances without significant degradation.
Scientists say the finding is potentially highly significant for the field of quantum cryptography, since such a technique could be utilized in distributing code keys used by a recipient to unlock a secure message.
The studies are detailed in two papers published in the current issue of the journal Nature.
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