中国物理B ›› 2025, Vol. 34 ›› Issue (5): 57202-057202.doi: 10.1088/1674-1056/adb735

所属专题: SPECIAL TOPIC — Advanced magnonics

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Nonreciprocal microwave-optical entanglement in Kerr-modified cavity optomagnomechanics

Ming-Yue Liu(刘明月)1, Yuan Gong(龚媛)1, Jiaojiao Chen(陈姣姣)1,2, Yan-Wei Wang(王艳伟)1,†, and Wei Xiong(熊伟)1,3,‡   

  1. 1 Department of Physics, Wenzhou University, Zhejiang 325035, China;
    2 School of Physics and Optoelectronics Engineering, Anhui University, Hefei 230601, China;
    3 International Quantum Academy, Shenzhen 518048, China
  • 收稿日期:2024-12-27 修回日期:2025-02-15 接受日期:2025-02-18 出版日期:2025-05-15 发布日期:2025-04-18
  • 通讯作者: Yan-Wei Wang, Wei Xiong E-mail:wangyw@wzu.edu.cn;xiongweiphys@wzu.edu.cn
  • 基金资助:
    WX is supported by the Natural Science Foundation of Zhejiang Province (Grant No. LY24A040004), the “Pioneer” and “Leading Goose” R&D Program of Zhejiang (Grant No. 2025C01028), and the Shenzhen International Quantum Academy (Grant No. SIQA2024KFKT010). YWW is supported by the Natural Science Foundation of Zhejiang Province (Grant No. LY23A40002) andWenzhou Science and Technology Plan Project (Grant No. L20240004).

Nonreciprocal microwave-optical entanglement in Kerr-modified cavity optomagnomechanics

Ming-Yue Liu(刘明月)1, Yuan Gong(龚媛)1, Jiaojiao Chen(陈姣姣)1,2, Yan-Wei Wang(王艳伟)1,†, and Wei Xiong(熊伟)1,3,‡   

  1. 1 Department of Physics, Wenzhou University, Zhejiang 325035, China;
    2 School of Physics and Optoelectronics Engineering, Anhui University, Hefei 230601, China;
    3 International Quantum Academy, Shenzhen 518048, China
  • Received:2024-12-27 Revised:2025-02-15 Accepted:2025-02-18 Online:2025-05-15 Published:2025-04-18
  • Contact: Yan-Wei Wang, Wei Xiong E-mail:wangyw@wzu.edu.cn;xiongweiphys@wzu.edu.cn
  • Supported by:
    WX is supported by the Natural Science Foundation of Zhejiang Province (Grant No. LY24A040004), the “Pioneer” and “Leading Goose” R&D Program of Zhejiang (Grant No. 2025C01028), and the Shenzhen International Quantum Academy (Grant No. SIQA2024KFKT010). YWW is supported by the Natural Science Foundation of Zhejiang Province (Grant No. LY23A40002) andWenzhou Science and Technology Plan Project (Grant No. L20240004).

摘要: Microwave-optical entanglement is essential for efficient quantum communication, secure information transfer, and integrating microwave and optical quantum systems to advance hybrid quantum technologies. In this work, we demonstrate how the magnon Kerr effect can be harnessed to generate and control nonreciprocal entanglement in cavity optomagnomechanics (COMM). This effect induces magnon frequency shifts and introduces pair-magnon interactions, both of which are tunable through the magnetic field direction, enabling nonreciprocal behavior. By adjusting system parameters such as magnon frequency detuning, we show that magnon-phonon, microwave-optical photon-photon, and optical photon-magnon entanglement can be nonreciprocally enhanced and rendered more robust against thermal noise. Additionally, the nonreciprocity of entanglement can be selectively controlled, and ideal nonreciprocal entanglement is achievable. This work paves the way for designing nonreciprocal quantum devices across the microwave and optical regimes, leveraging the unique properties of the magnon Kerr effect in COMM.

关键词: cavity optomechanics, cavity magnomechanics, continuous variable entanglement, magnon Kerr effect

Abstract: Microwave-optical entanglement is essential for efficient quantum communication, secure information transfer, and integrating microwave and optical quantum systems to advance hybrid quantum technologies. In this work, we demonstrate how the magnon Kerr effect can be harnessed to generate and control nonreciprocal entanglement in cavity optomagnomechanics (COMM). This effect induces magnon frequency shifts and introduces pair-magnon interactions, both of which are tunable through the magnetic field direction, enabling nonreciprocal behavior. By adjusting system parameters such as magnon frequency detuning, we show that magnon-phonon, microwave-optical photon-photon, and optical photon-magnon entanglement can be nonreciprocally enhanced and rendered more robust against thermal noise. Additionally, the nonreciprocity of entanglement can be selectively controlled, and ideal nonreciprocal entanglement is achievable. This work paves the way for designing nonreciprocal quantum devices across the microwave and optical regimes, leveraging the unique properties of the magnon Kerr effect in COMM.

Key words: cavity optomechanics, cavity magnomechanics, continuous variable entanglement, magnon Kerr effect

中图分类号:  (Scattering by phonons, magnons, and other nonlocalized excitations)

  • 72.10.Di
03.65.Ud (Entanglement and quantum nonlocality) 43.25.Qp (Radiation pressure?) 42.65.-k (Nonlinear optics)