Hoi-Kwong Lo

Proof-of-principle long-distance Sagnac twin-field quantum key distribution network

Twin-field (TF) quantum key distribution (QKD) offers a promising approach to long-distance QKD networks due to its superior performance over large channel losses. Due to specialized hardware requirements, nearly all long-distance TFQKD demonstrations have only two users exchanging keys, rather than a network with thre...