Nanjing University Achieves Scalable Quantum Cryptographic Conferencing

VERA Brief

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Researchers at Nanjing University have demonstrated a new quantum cryptographic conferencing network. This system achieves key generation rates independent of user count and improves tolerance to signal loss, aiming to facilitate scalable quantum communication.

Key facts

• Nanjing University researchers demonstrated an Asynchronous Measurement-Device-Independent Quantum Cryptographic Conferencing network.
• The system achieves a key generation rate that scales with O(η) loss, independent of the number of users.
• This development improves tolerance to signal loss and removes the need for global phase locking mechanisms.
• The research aims to facilitate scalable quantum communication among multiple parties.