I admittedly don’t know much about the technology involved, but this seems very unlikely to be true.
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The article says Samsung has already released one in South Korea, so it seems like it’d be pretty easy to confirm.
Edit: Looks like it does exist, has existed for two years, and so it’s very believable that China has one too. No reason to lie about it really
I wasn’t really disputing that the phone exists, more that it performs the way that they say it does. I’m not really sure how you would test it. From my very limited understanding, it’s already incredibly difficult to break conventional encryption.
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From my understanding, the main benefit of the quantumness was the inability of third parties to intercept data without changing it. But it sounds like this system relies on a series of base-stations relaying the data over fiber optic cables. Each of these base stations have access to all the keys, per Yogthos’ article.
this. The last I heard from China, quantum computers had 2 qbits and were the size of a house, but still very powerful, mind you.
China has been pioneering research in quantum communication, and has demonstrated using quantum channels to transmit data a while back https://www.scientificamerican.com/article/china-reaches-new-milestone-in-space-based-quantum-communications/
You can simulate qubits on classical hardware. I have no idea how it works, though.