Hierarchical remote preparation of an arbitrary two-qubit state with multiparty

被引：21

作者：

Ma, Songya ^{[1
,2
,3
]}

Wang, Niannian ^{[1
,4
]}

机构：

[1] Henan Univ, Sch Math & Stat, Kaifeng 475004, Peoples R China

[2] Beijing Univ Posts & Telecommun, Informat Secur Ctr, State Key Lab Networking & Switching Technol, Beijing 100876, Peoples R China

[3] Henan Univ, Henan Engn Res Ctr Artificial Intelligence Theory, Kaifeng 475004, Peoples R China

[4] Xinyang Univ, Sch Math & Stat, Xinyang 464000, Peoples R China

来源：

QUANTUM INFORMATION PROCESSING | 2021年 / 20卷 / 08期

基金：

中国国家自然科学基金;

关键词：

Hierarchical remote state preparation; Two-qubit state; Multiparty; Amplitude-damping noise; Phase-damping noise; ENTANGLEMENT; PURIFICATION; 4-QUBIT;

D O I：

10.1007/s11128-021-03220-y

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

Hierarchical remote preparation of an arbitrary two-qubit state has not been investigated by the previous work. We first put forward two deterministic schemes to realize the task among three agents by using two five-qubit cluster states as the quantum channel. To design these schemes, some useful and general measurement bases are constructed for the sender. Then, the two schemes are extended to multiparty with the aid of the symmetry of cluster state. There exists a hierarchy among the agents in terms of their ability to reconstruct the target state. The upper-grade agent requires the help of all the remaining upper-grade agents and anyone of the lower-grade agents. While the lower-grade agent needs the assistance of all the other agents. Finally, we consider the effect of two important decoherence noises: the amplitude-damping noise and phase-damping noise.

引用

页数：29

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