Curious if anyone in here has experience with startup called Rydberg Technologies, has achieved the world’s first long-range radio communication with an atomic quantum receiver, as a way to mitigate EMI
True quantum comms are very far off because quantum coherence times are still in the single milliseconds to maybe a few tens of milliseconds, even for cryo cooled rydberg atoms
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JC
That means the almost entire majority of “quantum” stuff we know about only stays quantum for fractions of a second before decaying into a non quantum state
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Justin C.
Best example of long range quantum comms of any sort might be the Chinese entangled light quantum encryption key distribution via satellite. Shit is super awesome.
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JC
All quantum communication systems relying on entanglement still require traditional communication mechanisms to distribute gate polarizations for quantum detectors, so you are still reliant on that
There is also a new and interesting class of quantum cryogenically cooled RF receivers that are already seeing uses.
Okay enough on quantum… If anyone wants to know more, there is a badass DARPA paper. CUI though… That highlights the current state of quantum technology for military applications at a very detailed level. I have an old one I can send to anyone interested
Yeh Rydberg is a thing for quantum comms. DM if you dream of long walks on the beach with quantum enabled RF sensors.
- Jenk