scholarly journals Remote state preparation with bipartite entangled states in noisy environments

2009 ◽  
Vol 58 (6) ◽  
pp. 3692
Author(s):  
Liang Hua-Qiu ◽  
Liu Jin-Ming
Keyword(s):  
Remote State Preparation ◽  
Entangled States ◽  
Noisy Environments ◽  
State Preparation

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.

MULTIPARTY REMOTELY PREPARING MULTIPARTITE EQUATORIAL ENTANGLED STATES IN HIGH DIMENSIONS

2011 ◽  
Vol 09 (06) ◽  
pp. 1437-1448
Author(s):  
YI-BAO LI ◽  
KUI HOU ◽  
SHOU-HUA SHI
Keyword(s):  
Quantum State ◽  
Quantum Channel ◽  
Success Probability ◽  
Quantum States ◽  
Remote State Preparation ◽  
Entangled States ◽  
Entangled State ◽  
High Dimensions ◽  
Original State ◽  
State Preparation

We propose two kinds of schemes for multiparty remote state preparation (MRSP) of the multiparticle d-dimensional equatorial quantum states by using partial entangled state as the quantum channel. Unlike more remote state preparation scheme which only one sender knows the original state to be remotely prepared, the quantum state is shared by two-party or multiparty in this scheme. We show that if and only if all the senders agree to collaborate with each other, the receiver can recover the original state with certain probability. It is found that the total success probability of MRSP is only by means of the smaller coefficients of the quantum channel and the dimension d.

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

Probabilistic controlled remote state preparation of an arbitrary two-qubit state via partially entangled states with multi parties

2018 ◽  
Vol 16 (01) ◽  
pp. 1850001 ◽  
Author(s):  
Jiahua Wei ◽  
Lei Shi ◽  
Zhiyan Xu ◽  
Yanhui Ni ◽  
Zhongxiang Han ◽  
...  
Keyword(s):  
Remote State Preparation ◽  
Entangled States ◽  
State Preparation ◽  
Implementation Processes ◽  
Controlled Remote State Preparation ◽  
Successful Probability ◽  
Efficient Scheme ◽  
Auxiliary Particles ◽  
Controlled Preparation ◽  
Special Case

We propose a novel and efficient scheme for probabilistic controlled remote state preparation of an arbitrary two-qubit quantum state with the aid of the introduction of auxiliary particles and some appropriate local unitary operations. In this scheme, two partially three-qubit entangled states are used as quantum channel. The controlled preparation with one sender, two receivers and one controller can be realized when the information of nonmaximally entangled states are only available for the sender. Furthermore, the concrete implementation processes of this proposal are presented, and the successful probability of our scheme are calculated in the general case and special case, respectively.

SCHEMES FOR REMOTELY PREPARING MULTIPARTITE EQUATORIAL ENTANGLED STATES IN HIGH DIMENSIONS

2004 ◽  
Vol 02 (02) ◽  
pp. 237-245 ◽  
Author(s):  
JIN-MING LIU ◽  
YU-ZHU WANG
Keyword(s):  
Single Particle ◽  
Particle Number ◽  
Remote State Preparation ◽  
Entangled States ◽  
Projective Measurement ◽  
High Dimensions ◽  
State Preparation ◽  
Orthogonal Measurement ◽  
Unit Probability

In this paper, we present two kinds of schemes for remotely preparing multiparticle d-dimensional equatorial entangled states with unit probability. It is found that the first remote state preparation scheme is realized by a multiparticle projective measurement, while the second scheme is achieved by a single particle orthogonal measurement. Each scheme can be perfectly implemented whatsoever the particle number N and the dimension d are.

scholarly journals Nonmaximal Entanglement Can Make Joint Remote State Preparation Absolutely Secure

2013 ◽  
Vol 23 (2) ◽  
pp. 97
Author(s):  
Cao Thi Bich ◽  
Nguyen Ba An
Keyword(s):  
Quantum State ◽  
Quantum Channel ◽  
The State ◽  
Remote State Preparation ◽  
Entangled States ◽  
Joint Remote State Preparation ◽  
State Preparation ◽  
Quantum Task

Joint remote state preparation is a multiparty global quantum task in which several parties are assigned to jointly prepare a quantum state for a remote party. Although various protocols have been proposed so far, none of them are absolutely secure in the sense that the legitimate parties (the preparers plus the receiver) can by no means identify the state to be prepared even if they all collude with each other. Here we resolve this drawback by employing the quantum channel in terms of nonmaximally entangled states whose parameters are kept secret to all the participants but used to split the information in a judicious way so that not only absolute security in the above-mentioned sense is achieved but also the performance is the simplest possible.

Effect of noise on deterministic remote preparation of an arbitrary two-qudit state by using a four-qudit χ-type state as the quantum channel

2020 ◽  
Vol 18 (05) ◽  
pp. 2050028
Author(s):  
Li Lv ◽  
Ping Zhou
Keyword(s):  
Positive Operator ◽  
Quantum Channel ◽  
Remote State Preparation ◽  
Quantum Decoherence ◽  
Noisy Environments ◽  
Text Type ◽  
State Preparation ◽  
Different Types ◽  
Remote Preparation ◽  
Noise Models

We present a protocol for remote preparation of an arbitrary two-qudit state by using a four-qudit [Formula: see text]-type state as the quantum channel via positive operator-valued measurement. We first propose the protocol for remote preparation of an arbitrary two-qudit state via positive operator-valued measurement in noiseless environment and then discuss the protocol in noisy environments. Four important quantum decoherence noise models, the dephasing noise, the qudit-flip noise, the qudit-phase-flip noise and the depolarizing noise, are considered in our protocol. The output states and the fidelities of remote state preparation in four different types of quantum noises are presented. It is shown the protocol for remote state preparation via positive operator-valued measurement with [Formula: see text]-type state has the advantage of transmitting less particles for remote preparing an arbitrary two-qudit state. The fidelities of remote state preparation depend on the coefficients of original two-qudit state and the decoherence rates of the noise models.

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