Experimental Quantum Key Distribution at 1.3 Gbit/s Secret-Key Rate over a 10-dB-Loss Channel
Zheshen Zhang, Changchen Chen, Quntao Zhuang, Jane E. Heyes, Franco N. C. Wong, Jeffrey H. Shapiro · Conference on Lasers and Electro-Optics · 2018
We demonstrate quantum key distribution at 1.3-Gbit/s secret-key rates over a 10-dB-loss channel. By transmitting many photons per bit with multi-mode encoding our protocol overcomes channel loss to achieve gigabit-per-second rates without compromising security.