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

被引：31
作者：
Wei, Jiahua [1 ,2 ]
Shi, Lei [1 ]
Zhu, Yu [1 ]
Xue, Yang [1 ]
Xu, Zhiyan [1 ]
Jiang, Jun [3 ]
机构：
[1] Air Force Engn Univ, Informat & Nav Coll, Xian 710077, Shaanxi, Peoples R China
[2] Natl Univ Def Technol, Coll Mechatron & Automat, Dept Automat Control, Changsha 410073, Hunan, Peoples R China
[3] Air Force Engn Univ, Aeronaut & Astronaut Engn Coll, Xian 710077, Shaanxi, Peoples R China
来源：
QUANTUM INFORMATION PROCESSING | 2018年 / 17卷 / 03期
基金：
中国国家自然科学基金;
关键词：
Remote state preparation; Successful probability; Arbitrary equatorial states; CLASSICAL COMMUNICATION COST; PROBABILISTIC TELEPORTATION; QUANTUM STATE;
D O I：
10.1007/s11128-018-1837-6
中图分类号：
O4 [物理学];
学科分类号：
0702 ;
摘要：
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.
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页数：9
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