High-Rate Quantum Key Distribution Exploiting Integrated Photonics and Multi-Pixel Superconducting Nanowire Detectors

We report a quantum key distribution system that is able to generate key at a record high key rate of 115.8 Mb/s over 10-km fibre. This attributes to a high-efficiency multi-pixel superconducting nanowire detector, a low-error integrated transmitter, and a fast post-processing algorithm.