Asymmetric Protocols for Scalable High-Rate Measurement-Device-Independent Quantum Key Distribution Networks

Understand

Measurement-device-independent quantum key distribution (MDI-QKD) can eliminate detector side channels and prevent all attacks on detectors.

• The future of MDI-QKD is a quantum network that provides service to many users over untrusted relay nodes.
• In a real quantum network, the losses of various channels are different and users are added and deleted over time.
• To adapt to these features, we propose a type of protocols that allow users to independently choose their optimal intensity settings to compensate for different channel losses.