Remote preparation of an arbitrary multi-qubit state via two-qubit entangled states

2017 ◽  
Vol 16 (10) ◽  
Author(s):  
Jiahua Wei ◽  
Lei Shi ◽  
Lihua Ma ◽  
Yang Xue ◽  
Xuchun Zhuang ◽  
...  
Keyword(s):  
Qubit State ◽  
Entangled States ◽  
Remote Preparation

scholarly journals Coping with noise in joint remote preparation of a general two-qubit state by using nonmaximally entangled quantum channel

2018 ◽  
Vol 28 (1) ◽  
pp. 1 ◽  
Author(s):  
Dat Thanh Le ◽  
Hop Van Nguyen ◽  
An Ba Nguyen
Keyword(s):  
Phase Diagrams ◽  
Quantum Channel ◽  
Qubit State ◽  
Entangled States ◽  
Joint Remote State Preparation ◽  
Quantum Domain ◽  
Quantum Protocols ◽  
Remote Preparation ◽  
Maximally Entangled States ◽  
Free Parameters

Noise is unavoidable in practice and its presence makes quantum protocols imperfect. In this paper we consider a way to cope with typical types of noise in joint remote preparation of an arbitrary 2-qubit state. The idea is to use nonmaximally (in stead of maximally) entangled states as the initial quantum channel. Because noise changes the initial quantum channel we can beforehand tailor it to be nonmaximally entangled by introducing free parameters which, depending on given types of noise, can be controlled so that due to the affect of noise the initial quantum channel becomes closest to the maximally entangled one, thus optimizing the performance of the joint remote state preparation protocol. The dependence of the optimal averaged fidelities on the strength of various types of noise is represented by phase diagrams that clearly separate the quantum domain from the classical one.

scholarly journals Effect of Quantum Noise on Deterministic Remote Preparation of an Arbitrary Two-Qubit State With a Relay Node

IEEE Access ◽  
2021 ◽  
Vol 9 ◽  
pp. 20942-20953
Author(s):  
Ying-Jia Qian ◽  
Zhi-Hang Xu ◽  
Shi-Bei Xue ◽  
Min Jiang
Keyword(s):  
Quantum Noise ◽  
Relay Node ◽  
Qubit State ◽  
Remote Preparation

Joint Remote Preparation of an Arbitrary Three-Qubit State with Mixed Resources

2013 ◽  
Vol 52 (12) ◽  
pp. 4265-4274 ◽  
Author(s):  
Huina Li ◽  
Yuan Ping ◽  
Xiuqin Pan ◽  
Mingxing Luo ◽  
Zhili Zhang
Keyword(s):  
Qubit State ◽  
Remote Preparation
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