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Can someone explain how this is a breakthrough compared to China's satellite system which achieved QKD in 2016? They also claim "ground-based QKD to beyond 500
by tofukid 5y ago
Can someone explain how this is a breakthrough compared to China's satellite system which achieved QKD in 2016? They also claim "ground-based QKD to beyond 500 km using a new technology called twin-field QKD"
https://scitechdaily.com/china-builds-the-worlds-first-integrated-quantum-communication-network/ https://scitechdaily.com/china-builds-the-worlds-first-integ...
- heavenlyblue 5y agoBy the way, how does this work over the radio? Does that mean that adding an antenna that captures the signal in the middle would affect the statistics of the received signal? What does it mean to have a “receiving antenna” in this case if any antenna can receive signals of any frequency?