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Deterministic secure quantum communication with practical devices

机译：确定安全的量子通信实际的设备

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Deterministic secure quantum communication (DSQC) can transmit ciphered message with information theoretical security, in which the message is directly modulated on the quantum state and transmitted from Alice to Bob. Thus, key is not pre-shared, but rather communicated after the security of the ciphered message transmission is assured. In most of previous DSQC protocols, quantum memory or entanglement is necessary, which is still a big challenge with current technology. And the imperfections of practical devices, such as loss, weak coherent source, and so on, may also down play the security and efficiency of these DSQC protocols. In this article, a DSQC protocol with practical devices is proposed. In our protocol, both quantum memory and entanglement are not require. And DSQC with distance as long as 100-200 km and repetition as high as ~ GHz is possible.
机译：确定安全的量子通信(DSQC)4消息可以传递信息理论安全、消息直接调制量子态和爱丽丝和鲍勃传播。pre-shared,而是沟通后4安全消息传输保证。量子存储器或纠缠是必要的,这与目前仍然是一个巨大的挑战技术。设备,例如丧失、弱相干源等等,也可以下来玩的安全这些DSQC协议的效率。文章中,与实际设备DSQC协议提出了。和纠缠是不需要。距离只要100 - 200公里和重复高~ GHz是可能的。

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