Dr Shields's photon detector, however, permits cryptographers to use a phenomenon called quantum entanglement to make a repeater that does not destroy quantum states. 史立德博士的光子探测器允许密码器利用一种叫量子纠结的现象来建立中继器,而又不破坏量子形态。
The devices used are beam splitters and ideal photon detectors capable of distinguishing between odd and even photon numbers. 该方案所使用的器件包括分束器和可以区分奇偶光子数的理想光子探测器。