Perfect controlled joint remote state preparation of arbitrary multi-qubit states independent of entanglement degree of the quantum channel

Jia-yin, Peng; Bai, Ming-Qiang; Tang, Liang; Yang, Zhen; Mo, Zhi-Wen

doi:10.1007/s11128-021-03282-y

Cited by 17 publications

(5 citation statements)

References 35 publications

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“…Quantum entanglement is one fundamental resource in quantum information processing (QIP) tasks [1][2][3][4], enabling various applications such as quantum secure direct communication (QSDC) [5], quantum key distribution (QKD) [6][7][8], remote state preparation (RSP) [9][10][11][12][13][14][15][16], and quantum teleportation (QT) [17][18][19][20][21][22]. In these applications, entanglement acts as the bridge for transmitting quantum information remotely without direct physical contact.…”

Section: Introductionmentioning

confidence: 99%

Bilateral fault-tolerant qudit teleportation in multi-hop quantum networks

Li,

Wei,

Xue

et al. 2024

Phys. Scr.

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In this paper, we present one general fault-tolerant multi-hop teleportation scheme for arbitrary unknown qudit system, exploring a strategy for distilling high-dimensional EPR pairs within the operational errors channel, where the introduced auxiliary pairs don't have to be in high-fidelity. These errors can be detectable and traceable in quantum networks, promising that the accumulation of the operational errors can be rectified by the final receiver during the teleportation, avoiding the error correction implemented by the intermediate nodes. Moreover, we extend the strategy to the non-maximally entangled EPR channels. In the end, we discuss the potential strategy to improve our scheme including eliminating the encoding step for the error correction codes. Even through the operational errors may occur at the repeater nodes, the performance analysis demonstrates that the scheme significantly preserves the valuable entangled resources and reduces the operational complexity, illustrating the robustness to against the operational errors in repeater nodes.

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Section: Introductionmentioning

confidence: 99%

Bilateral fault-tolerant qudit teleportation in multi-hop quantum networks

Li,

Wei,

Xue

et al. 2024

Phys. Scr.

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“…Although the supervisor is not aware of the target state's information, he dictates whether the state can be restored. Up to present, RSP has been widely promoted in various theoretical aspects such as RSP via different entangled resources [10][11][12][13], controlled JRSP [14,15], bidirectional and cyclic RSP [16][17][18][19].…”

Section: Introductionmentioning

confidence: 99%

Enhancing hierarchical remote preparation of an arbitrary n-qudit equatorial state by weak measurement and measurement reversal

Yan,

Ma,

Jin

2024

Phys. Scr.

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Based on the demand for safer and more efficient quantum network communication, we propose two deterministic protocols to achieve the remote preparation of an arbitrary n-qudit equatorial states among multiple agents by selecting appropriate entanglement resources. The level of the agents varies depending on their authorities to restore the secret state. The superior agent requires the cooperation of the residual superior agents and any one of the subordinate agents, while the subordinate agent needs the help of all the other agents. To be emphasized, the recovery operations are deduced by general formulas that distinctly elucidate their relevance with the measurement outcomes. Additionally, we discuss the impact of amplitude damping noise and utilize weak measurement and measurement reversal to suppress noise.

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“…These types of quantum communication schemes are known as quantum remote state preparation (RSP) protocols which were first introduced by Pati [34]. Following the work of Pati [34], several researchers developed various modified forms of quantum remote state preparation schemes such as controlled RSP [35][36][37], joint remote state preparation [38][39][40], cyclic RSP [41][42][43], bi-directional RSP [44][45][46], conference RSP [47], etc. However, in the process of quantum state transfer or creation of states in remote locations there will inevitably be interactions with the environment.…”

Section: Introductionmentioning

confidence: 99%

Simultaneous Asymmetric Quantum Remote State Preparation Scheme in Noisy Environments

Choudhury¹,

Mandal²,

Samanta³

et al. 2023

Preprint

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In this paper we discuss a quantum multi-tasking protocol for preparation of known one-qubit and two-qubit states respectively in two different locations. The ideal remote state preparation protocol is discussed in the first place in which a five-qubit entangled state is utilized. The design for the preparation of such entanglement is also presented and run on IBM quantum composer platform. The effects of three types of noises on the protocol are discussed and in all these cases the reduced fidelities of the process are calculated. The variations of these fidelities with respect to different parameters are analysed.

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Perfect controlled joint remote state preparation of arbitrary multi-qubit states independent of entanglement degree of the quantum channel

Cited by 17 publications

References 35 publications

Bilateral fault-tolerant qudit teleportation in multi-hop quantum networks

Bilateral fault-tolerant qudit teleportation in multi-hop quantum networks

Enhancing hierarchical remote preparation of an arbitrary n-qudit equatorial state by weak measurement and measurement reversal

Simultaneous Asymmetric Quantum Remote State Preparation Scheme in Noisy Environments

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