Proof-of-Principle Experimental Demonstration of Twin-Field Type Quantum Key Distribution
Proof-of-Principle Experimental Demonstration of Twin-Field Type Quantum Key Distribution
The twin-field (TF) quantum key distribution (QKD) protocol and its variants are highly attractive because they can beat the well-known fundamental limit of the secret key rate for point-to-point QKD without quantum repeaters (repeaterless bound). In this Letter, we perform a proof-of-principle experimental demonstration of TFQKD based on the protocol …