Multipartite entanglement and one-way steering in magnon frequency comb

doi:10.1088/1674-1056/adf9fe

中国物理B ›› 2025, Vol. 34 ›› Issue (10): 107514-107514.doi: 10.1088/1674-1056/adf9fe

所属专题： SPECIAL TOPIC — Advanced magnonics

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

收稿日期:2025-06-12 修回日期:2025-08-02 接受日期:2025-08-11 发布日期:2025-10-11
通讯作者: Peng Yan E-mail:yan@uestc.edu.cn
基金资助:
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).

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

Received:2025-06-12 Revised:2025-08-02 Accepted:2025-08-11 Published:2025-10-11
Contact: Peng Yan E-mail:yan@uestc.edu.cn
Supported by:
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).

摘要/Abstract

摘要： 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.

关键词: multipartite entanglement, one-way steering, magnon frequency comb, skyrmion

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.

Key words: multipartite entanglement, one-way steering, magnon frequency comb, skyrmion

中图分类号: (Spin waves)

75.30.Ds

03.67.Bg (Entanglement production and manipulation) 12.39.Dc (Skyrmions)

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[J]. 中国物理B, 2025, 34(10): 107514-107514.

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[J]. Chin. Phys. B, 2025, 34(10): 107514-107514.

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Multipartite entanglement and one-way steering in magnon frequency comb

Multipartite entanglement and one-way steering in magnon frequency comb

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