Efficient scheme for remote preparation of arbitrary n-qubit equatorial states

Zha, Xin-Wei; Wang, Qiao‐Chun; Jiang, Ruo-Xu

doi:10.1088/1674-1056/ab773d

Cited by 8 publications

(6 citation statements)

References 64 publications

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“…It could be fulfilled via Cluster-type state [12], χ state [10], Brown state [13], entangled six-qubit state [14] and so on. The preparation of special states have been studied, such as pure and mixed polarization states [15], four-particle entangled W-state [16,17], arbitrary n-qubit equatorial states [18,19], entangled Cluster-type state [20,21], continuous variable RSP [22] and asymmetric five-party three-qubit entangled state [23].…”

Section: Introductionmentioning

confidence: 99%

Joint remote state preparation in multi-hop network under noisy environment

Zhang

Chen

2023

Phys. Scr.

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Joint remote state preparation is an important method to transmit quantum information with more senders and higher security. In this paper, we present a deterministic joint remote state preparation scheme in multi-hop network with two senders and $N$ intermediate parties, using only projective measurements and recovery operations. We describe the scheme under the framework of density matrix to investigate the performance of the scheme in noisy environment. The relation of fidelity, noise rate and the number of intermediate nodes is given for three types of noise. It is revealed that the average fidelity attains its minimum when the noise rate is at the most uncertain point, decreases monotonically as the number of intermediate nodes increases. However, in some special cases, the average fidelity of the multi-hop scheme is greater than some existing one step joint remote state preparation scheme.

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Section: Introductionmentioning

confidence: 99%

Joint remote state preparation in multi-hop network under noisy environment

Zhang

Chen

2023

Phys. Scr.

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“…It should be pointed out that the form of Alice's measurement basis is not unique theoretically. For instance, the measurement basis {|Γ d } can take the form of [56] |Γ…”

Section: Remote State Preparation Of General Multiqubit Equatorial St...mentioning

confidence: 99%

“…[54,55] In 2020, Zha et al proposed the remote deterministic preparation of arbitrary n qubit equatorial states using the maximally entangled state channel. [56] Very recently, Wang et al proposed bidirectional three-qubit and four-qubit CRSP schemes. [57] It should be noted that there are few comprehensive studies on the remote preparation of multi-qubit equatorial states in a noisy environment.…”

Section: Introductionmentioning

confidence: 99%

Deterministic remote preparation of multi-qubit equatorial states through dissipative channels

et al. 2023

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We investigate the influence of noisy environment on the remote preparation of the multi-qubit equatorial state, and specifically deduce the final states and fidelities of the remote preparation of the three-qubit and four-qubit equatorial states under diverse types of noisy environment, namely amplitude damping, bit flip, phase damping, phase flip, bit-phase flip, depolarization and non-Markov environments. The results show that when the decoherence factors of the front six noise are equal, the influence degrees of phase damped noise, bit flip noise, phase flip noise and bit-phase flip noise are similar, while the information loss caused by amplitude damped noise and depolarizing noise is less. In particular, the bit flip noise and depolarizing noise may have more complex effects on the remote state preparation (RSP) schemes depending on the phase information of target states, even the ideal cases that the fidelity values are always 1 for specific phase relations. In the non-Markov environment, owing to the back and forth of information between the environment and systems, fidelities exhibit oscillating behavior and the minimum value may stay greater than zero for a long evolutionary time. These results are expected to have potential applications for understanding and avoiding the influence of noise on remote quantum communication and quantum networks.

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“…[25,26] The main advantage of DRSP over RSP protocol is that DRSP protocols can guarantee unit success probability. Various DRSP protocols have been proposed over the past few years and many entangled states (e.g., Einstein-Podolsky-Rosen (EPR) pairs, [27][28][29][30] GHZ state, [31,32] cluster state, [33,34] χ state, [22] Brown state [35] and Bell state [36] ) have been used to imple-ment DRSP. In 2013, Zhan et al [37] proposed a DRSP scheme by using six EPR pairs, where a four-qubit cluster state was remotely prepared.…”

Section: Introductionmentioning

confidence: 99%

Deterministic remote state preparation of arbitrary three-qubit state through noisy cluster-GHZ channel

Xu¹,

Wei²,

Jiang³

et al. 2022

Chinese Phys. B

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We propose a novel scheme for remote state preparation of an arbitrary three-qubit state with unit success probability, utilizing a nine-qubit cluster-GHZ state without introducing auxiliary qubits. Furthermore, we proceed to investigate the effects of different quantum noises (e.g., amplitude-damping, phase-damping, bit-flip and phase-flip noises) on the systems. The fidelity results of three-qubit target state are presented, which are usually used to illustrate how close the output state is to the target state. To compare the different effects between the four common types of quantum noises, the fidelities under one specific identical target state are also calculated and discussed. It is found that the fidelity of the phase-flip noisy channel drops the fastest through the four types of noisy channels, while the fidelity is found to always maintain at 1 in bit-flip noisy channel.

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Efficient scheme for remote preparation of arbitrary n-qubit equatorial states

Cited by 8 publications

References 64 publications

Joint remote state preparation in multi-hop network under noisy environment

Joint remote state preparation in multi-hop network under noisy environment

Deterministic remote preparation of multi-qubit equatorial states through dissipative channels

Deterministic remote state preparation of arbitrary three-qubit state through noisy cluster-GHZ channel

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