Germany-China Team Runs Time-Bin QKD Over 120 km of Fiber for Six Hours, Using a Telecom Quantum Dot as the Single-Photon Source
Researchers led by Leibniz Hannover, Stuttgart, and Nanjing have published the first time-bin QKD link driven by an on-demand telecom quantum dot, holding stable across 120 km of standard fiber for six hours straight.
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