Enhancing remote state preparation via five-qubit cluster state in noisy environments

2021 ◽  
Vol 53 (2) ◽  
Author(s):  
SheXiang Jiang
Keyword(s):  
Cluster State ◽  
Remote State Preparation ◽  
Noisy Environments ◽  
State Preparation

QUANTUM KEY DISTRIBUTION AND REMOTE STATE PREPARATION VIA CLUSTER STATE

2010 ◽  
Vol 24 (10) ◽  
pp. 995-1001 ◽  
Author(s):  
GUO-FANG SHI
Keyword(s):  
Quantum Key Distribution ◽  
Cluster State ◽  
Key Distribution ◽  
Qubit State ◽  
Remote State Preparation ◽  
Particle Cluster ◽  
State Preparation ◽  
Real Complex

In this paper, the schemes of quantum key distribution and remote state preparation of an arbitrary two-qubit state via four-particle cluster state are proposed. The efficiency of the former is 1 and the probability of the latter is 1(1/4) if the coefficients are real (complex).

Remote state preparation via a GHZ-class state in noisy environments

2011 ◽  
Vol 44 (11) ◽  
pp. 115506 ◽  
Author(s):  
Hua-Qiu Liang ◽  
Jin-Ming Liu ◽  
Shang-Shen Feng ◽  
Ji-Gen Chen
Keyword(s):  
Remote State Preparation ◽  
Noisy Environments ◽  
State Preparation

Remote State Preparation of Arbitrary Three-qubit State via Cluster State and Bell State

2012 ◽  
Vol 41 (3) ◽  
pp. 335-338
Author(s):  
王东 WANG Dong ◽  
查新未 ZHA Xin-wei ◽  
祁建霞 QI Jian-xia ◽  
贺瑶 HE Yao
Keyword(s):  
Cluster State ◽  
Bell State ◽  
Qubit State ◽  
Remote State Preparation ◽  
State Preparation

PROBABILISTIC REMOTELY PREPARING AN ARBITRARY TWO-PARTICLE ENTANGLED STATE VIA POSITIVE OPERATOR-VALUED MEASURE

2008 ◽  
Vol 06 (06) ◽  
pp. 1183-1193 ◽  
Author(s):  
KUI HOU ◽  
JING WANG ◽  
SHOU-HUA SHI
Keyword(s):  
Positive Operator ◽  
Cluster State ◽  
Success Probability ◽  
Remote State Preparation ◽  
Entangled State ◽  
Classical Communication ◽  
Maximally Entangled State ◽  
State Preparation ◽  
Projective Measurements ◽  
Positive Operator Valued Measure

By means of the method of the positive operator-valued measure, two schemes to remotely prepare an arbitrary two-particle entangled state were presented. The first scheme uses a one-dimensional four-particle non-maximally entangled cluster state while the second one uses two partially entangled two-particle states as the quantum channel. For both schemes, if Alice performs two-particle projective measurements and Bob adopts positive operator-valued measure, the remote state preparation can be successfully realized with certain probability. The success probability of the remote state preparation and classical communication cost are calculated. It is shown that Bob can obtain the unknown state with probability 1/4 for maximally entangled state. However, for four kinds of special states, the success probability of preparation can be enhanced to unity.

REMOTE STATE PREPARATION IN NON-MARKOVIAN ENVIRONMENT

2012 ◽  
Vol 10 (03) ◽  
pp. 1250030 ◽  
Author(s):  
YANLIANG ZHANG ◽  
QINGPING ZHOU ◽  
GUODONG KANG ◽  
FANG ZHOU ◽  
XIAOBO WANG
Keyword(s):  
Quantum Channel ◽  
Communication Channel ◽  
Quantum Communication ◽  
Remote State Preparation ◽  
Entangled States ◽  
Particle State ◽  
Noisy Environments ◽  
Initial State ◽  
State Preparation ◽  
Over Time

We present a scheme for remote preparing a general two-particle state by two entangled states serving as the quantum communication channel. In this scheme, it is possible for the receiver to perfectly reconstruct the initial state that the sender hopes to prepare with the method of introducing an auxiliary qubit and postselection measurements in the situation of non-maximal entangled quantum channel. Furthermore, we investigate the influence of the dissipation factors on the processing of the remote state preparation when the entangled resources are in the Markovian and non-Markovian noisy environments. It is shown that the fidelity of remote state preparation is decreasing exponentially over time in Markovian environments and attenuating oscillatorily in non-Markovian. However, when the non-Markovian and the detuning conditions are satisfied simultaneously, the fidelity can be preserved at comparative high levels, effectively.

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