Deterministic remote preparation of arbitrary multi-qubit equatorial states via two-qubit entangled states

作者：Wei, Jiahua^*; Shi, Lei^*; Zhu, Yu; Xue, Yang; Xu, Zhiyan; Jiang, Jun

来源：Quantum Information Processing, 2018, 17(3): 70.

DOI：10.1007/s11128-018-1837-6

• Remote state preparation
• Successful probability
• Arbitrary equatorial states

We propose an efficient scheme for remotely preparing an arbitrary n-qubit equatorial state via n two-qubit maximally entangled states. Compared to the former scheme (Wei et al. in Quantum Inf Process 16: 260, 2017) that has the 50% successful probability when the amplitude factors of prepared states are 2(-n/2), the probability would be increased to 100% by using of our modified proposal. The feasibility of our scheme for remote preparation arbitrary multi-qubit equatorial states is explicitly demonstrated by theoretical studies and concrete examples.

• 出版日期2018-3
• 单位中国人民解放军国防科学技术大学; 中国人民解放军空军工程大学