QKD System with Inevitable Alert for Detector-Control Attacks

Key Points

• The alert detector consistently surpasses the eavesdropper’s sifted-key rate, improving quantum security.
• When a detector-control attack is launched, the system maintains reliable performance with higher count rates.
• This QKD system provides an added layer of defense against potential attack vectors in quantum communication.
• Protecting the key exchange process is crucial in preventing unauthorized access to sensitive information.

Abstract