| 摘要 |
A quantum cryptography multi-node communication system includes a quantum communication channel and a plurality of nodes including a transmission node and a reception node and connected with the quantum communication channel. The transmission node transmits a light signal as a time series of photons to the reception node through the quantum communication channel, a quantum state of the photons is modulated, and transmits a quantum state sequence to the reception node. The reception node predetermines a quantum state sequence, receives the light signal transmitted from the transmission node, measures quantum states of the received light signal, and determines presence or absence of interception based on the predetermined quantum state sequence, the transmitted quantum state sequence and the measured quantum states.
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