Implementation of repeaterless quantum key distribution over 502 km fibers
Pei Zeng, Xiongfeng Ma, Hui Liu, Teng‐Yun Chen, Weijie Wu, Jian-Wei Pan · 2020
We implemented the recently proposed phase-matching quantum key distribution scheme using the coherent laser sources, optical fibers, and single-photon detectors. With the laser injection technique and phase-post compensation method, we realize the repeaterless quantum key distribution over 500 km fiber for the first time.