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Special Issue:
SPECIAL TOPIC — Advanced magnonics
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| SPECIAL TOPIC — Advanced magnonics |
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Multipartite entanglement and one-way steering in magnon frequency comb |
| Qianjun Zheng(郑芊君), Yunshan Cao(曹云姗), and Peng Yan(严鹏)† |
| School of Physics and State Key Laboratory of Electronic Thin Films and Integrated Devices, University of Electronic Science and Technology of China, Chengdu 610054, China |
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Abstract We theoretically demonstrate that multipartite entanglement and one-way Einstein-Podolsky-Rosen (EPR) steering in a magnon frequency comb (MFC) can be generated in a hybrid magnon-skyrmion system. When the system is driven by two microwave fields at the magnonic whispering gallery mode (mWGM) and the skyrmion, the skyrmion can be simultaneously entangled with three magnon modes of the MFC and the entanglement of the first-order magnon pair in the MFC also appears. The results show that the perfect one-way steering between the skyrmion and the three magnons can be obtained. Interestingly, the steering direction can be manipulated by controlling the amplitudes of two drive fields, which provides flexibility in controlling the asymmetry of the EPR steering and may well have practical applications. Moreover, the genuine tripartite entanglement among the skyrmion and the first-order magnon pair can be achieved with appropriate parameters in the steady state. Our work exhibits that the MFC has great potential in preparing multi-mode entanglement resources, with promising applications in quantum communication.
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Received: 12 June 2025
Revised: 02 August 2025
Accepted manuscript online: 11 August 2025
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PACS:
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75.30.Ds
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(Spin waves)
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03.67.Bg
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(Entanglement production and manipulation)
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12.39.Dc
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(Skyrmions)
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| Fund: Project supported by the National Key R&D Program of China (Grant No. 2022YFA1402802) and the National Natural Science Foundation of China (Grant Nos. 12374103, 12434003, and 12074057). |
Corresponding Authors:
Peng Yan
E-mail: yan@uestc.edu.cn
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Cite this article:
Qianjun Zheng(郑芊君), Yunshan Cao(曹云姗), and Peng Yan(严鹏) Multipartite entanglement and one-way steering in magnon frequency comb 2025 Chin. Phys. B 34 107514
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