Decoy-state BB84 QKD achieves time synchronization from photon arrival differences between signal and decoy pulses, removing the need for a dedicated synchronization channel.
Finite-key analysis for the 1-decoy state qkd protocol,
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Decoy State based Time Synchronization
Decoy-state BB84 QKD achieves time synchronization from photon arrival differences between signal and decoy pulses, removing the need for a dedicated synchronization channel.