基于GHZ态与cluster态的双向量子操作传送

Bidirectional Quantum Operation Teleportation with GHZ State and Cluster State

结合双向隐形传态与量子操作传送,利用GHZ态与cluster态提出2个双向量子操作传送方案.2个方案中,使用Bell基测量和单粒子测量,受控非门操作以及适当酉变换,Alice可以把一个未知的任意单粒子酉操作U A作用于Bob所在的量子系统,同时,Bob能把一个任意的单粒子酉操作UB作用在Alice的系统,从而实现操作的双向传递.2个方案都能以概率1成功实现.最后与已有的双向协议进行比较,结果表明所提方案具有一定的优势.

Combining bidirectional quantum teleportation with quantum operation teleportation,two schemes are proposed for bidirectional quantum operation teleportation with GHZ state and cluster state.In these schemes,methods only include Bell-basis and single-qubit measurement,controlled-not gate operation and apporpriate unitary transformation.Alice can implement an unknown single-qubit unitary operation U A upon Bob’s quantum system,and Bob can also implement an arbitrary single-qubit unitary operation U B upon Alice’s quantum system simultaneously.Therefore,the bidirectional transmission of the operation is realized.Two schemes can be successfully achieved with probability 1.Finally,compared with the existing bidirectional protocols,the results show that the proposed schemes have certain advantages.