Upper Security Bounds for Coherent-One-Way Quantum Key Distribution
Upper Security Bounds for Coherent-One-Way Quantum Key Distribution
The performance of quantum key distribution (QKD) is severely limited by multiphoton pulses emitted by laser sources due to the photon-number splitting attack. Coherent-one-way (COW) QKD has been introduced as a promising solution to overcome this limitation, and thus extend the achievable distance of practical QKD. Indeed, thanks to its …