摘要
提出了一种在另外两方辅助下实现的未知三粒子克隆方案。在协议过程中,消息发送者欲传送一个未知的三粒子态给远方的接收者,并且获得未知态的复制态。协议的第一阶段是量子信息的隐形传送。第二阶段,为了帮助消息发送者实现量子态克隆,另外两方分别对自己手中的粒子进行三粒子投影测量,消息接收者才能获得该未知态的复制态。我们的协议优势在于,联合克隆出未知态复制态的成功率可达到1。
A scheme to create a perfect copy of a three-qubit state with assistance from two preparers is proposed.During the course agreed in the scheme,the sender wish to teleport an unknown three-qubit entangled state which from two preparers to a remote receiver,and then create a perfect copy of the unknown state at her place.The scheme includes two stages.The first stage of the scheme requires usual teleportation.In the second stage,to help the sender realize the quantum cloning,two preparers perform three-qubit projective measurements on their own qubits which is from the sender,then the sender can acquire a perfect copy of the unknown state.The superiority of our protocol is that the rate of success about getting the copy can reach 1.
出处
《量子光学学报》
CSCD
北大核心
2013年第4期324-329,共6页
Journal of Quantum Optics
基金
国家自然科学基金(Grant No.10902083)
陕西自然科学基金(No.2013JM1009)
关键词
联合克隆
隐形传送
三粒子纠缠态
Assisted cloning
Teleportation
Three-qubit entangled state
