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Star network quantum steering

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Abstract

The topic of network steering in the independent-resource line network with intermediate parties being trusted and end parties being untrusted is proposed in [Jones et al. Phys Rev Lett 127(14):170405, 2021]. Where the problem that how entanglement and steerability of independent resources demonstrate network steerability was focused on deeply. In the paper, we propose the definition of quantum steering in the independent-resource star network by the corresponding local hidden state model, where the center party is untrusted and the remaining parties are trusted. Furthermore, we discover a number of kinds of relationships between entanglement (steerability) of independent resources and star network steerability.

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Acknowledgements

Thanks for comments. The work was supported by the National Natural Science Foundation of China [Grant No. 12271394] and the Key Research and Development Program of Shanxi Province [Grant No. 202102 010101004].

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  1. College of Mathematics, Taiyuan University of Technology, Taiyuan, 030024, People’s Republic of China

    Huijie Zhang, Shuyuan Yang & Kan He

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  1. Huijie Zhang
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  2. Shuyuan Yang
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Correspondence to Kan He.

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Zhang, H., Yang, S. & He, K. Star network quantum steering. Quantum Inf Process 22, 286 (2023). https://doi.org/10.1007/s11128-023-04042-w

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