基于五粒子团簇态实现四粒子团簇态的概率隐形传态

Probabilistic teleportation of four particle cluster state via five particle cluster state

为实现更经济的四粒子团簇态的概率隐形传输,提出了一种利用五粒子团簇态为量子信道的隐形传态方案。基于解纠缠-隐形传输-重构纠缠方法,发送者在发送信息之前对信息态进行一次控制非门操作和投影测量,将解纠缠的信息发送给接收者。在这个过程中发送者需要进行2次Bell基联合测量和1次单粒子测量,接收者根据发送者的测量结果进行相应操作,得出解纠缠的信息态。引入辅助粒子重构原始的未知信息态,信息传输成功的概率为4|a|~2,提出的方案可以很好地应对一般窃听方式。

In order to realize the more economical probability teleportation of four particle cluster state, a teleportation scheme using five particle cluster state as quantum channel is proposed. Based on the disentanglement-teleportation-reconstruction method, the sender does a CNOT operation and projection measurement on information state before sending information. The disentanglement information is sent to the receiver. In this process, the sender needs to carry out two Bell state and single particle measurements. The receiver carries out the corresponding operation according to the sender＇s measurement results, and the entanglement information state is obtained. The original unknown information state is reconstructed by introducing auxiliary particle, and the probability of information successfifl transraission is 4｜a｜^2. The scheme can be a good way to deal with the general eavesdropping.