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Quantum Information Processing

Quantum multicast, multi-output protocols of quantum state sharing and quantum operation sharing via six-particle cluster state

Peng Jia-yin, Fan Wu, Jiangang Tang, Liang Bao Tang

Published Nov 30, 2023• 8 citations
Publisher
DOI
10.1007/s11128-023-04176-x

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Abstract The primary aim of this study is to utilize multicast in the preparation of multi-party four-qubit cluster states. In the presence of environment noises, errors may influence the procedure of the particle distribution. To address this challenge, we propose a fault-tolerant scheme to manage the errors within the detectable channel particles. Based on the Bell chain channel, our approach could prepare arbitrary four-particle cluster state by introducing auxiliary particles, where the receiver performs the unitary operation for recovering the target states. Compared to previous multicast protocols, our scheme reduces resource consumption and operational complexity during cluster state preparation. Additionally, we analyze the system’s fidelity in incoherent environments, providing a more comprehensive understanding of the impact of noise on quantum communication systems.