QUANTUM CIRCUITS FOR PROBABILISTIC ENTANGLEMENT TELEPORTATION VIA A PARTIALLY ENTANGLED PAIR
QUANTUM CIRCUITS FOR PROBABILISTIC ENTANGLEMENT TELEPORTATION VIA A PARTIALLY ENTANGLED PAIR
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DOI：
10.1142/s021974990700316x
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发表时间：
2007-10
影响因子：
1.2
通讯作者：
Xiubo Chen;Q. Wen;F. Zhu
中科院分区：
文献类型：
--
作者：
Xiubo Chen;Q. Wen;F. Zhu
值得一提的是，量子电路，即量子逻辑网络，是在实验中实际实现隐形传态的关键。本文首先利用一个部分纠缠对，提出了两种双部系统中任意部分纠缠态的概率隐形传输策略。该协议的特点是降低了对量子信道的要求，并且减少了发送方和接收方最初共享的纠缠粒子的数量。另一方面，我们显式构造了由正算子值测度（POVM）描述的广义测度。提出了两种实现隐形传态的高效量子电路。此外，我们将二粒子概率隐形传态推广到多粒子系统。
It deserves mentioning that the quantum circuit, i.e. quantum logic network, is essential to the practical realization of teleportation in experiment. Using only one partially entangled pair, we first propose two novel strategies for probabilistically teleporting any partially entangled state of a bipartite system. The feature of the present protocol is to weaken the requirement for the quantum channel, and also to cut down the number of entangled particles initially shared by the sender and receiver. On the other hand, we explicitly construct the generalized measurement described by the positive operator-valued measure (POVM). Two kinds of efficient quantum circuits for implementing the teleportation are offered. In addition, we generalize the two-particle probabilistic teleportation to the system of many particles.