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诱骗态量子密钥分发方法成功地解决了光子数分离攻击的安全性漏洞,并且使得人们实现了长距离的量子密钥分发.回顾了量子密钥分发的发展过程,从BB84协议至三强度诱骗态方法的实现.并且详细叙述了如何通过输入参数来获得绝对安全密钥的成码率.
The lure quantum quantum key distribution method successfully solves the security loopholes of the photon number separation attack and enables the realization of the quantum key distribution over long distances.The development process of quantum key distribution is reviewed, from the BB84 protocol to three-intensity decoy State method, and describes in detail how to obtain the coding rate of absolute security key by inputting parameters.