中国物理B ›› 2023, Vol. 32 ›› Issue (5): 54205-054205.doi: 10.1088/1674-1056/acaf2b

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Tunable magnomechanically induced transparency and fast-slow light in a hybrid cavity magnomechanical system

Qinghong Liao(廖庆洪)1,2,†, Kun Peng(彭坤)1, and Haiyan Qiu(邱海燕)1   

  1. 1 Department of Electronic Information Engineering, Nanchang University, Nanchang 330031, China;
    2 State Key Laboratory of Low-Dimensional Quantum Physics, Department of Physics, Tsinghua University, Beijing 100084, China
  • 收稿日期:2022-08-08 修回日期:2022-12-09 接受日期:2022-12-30 出版日期:2023-04-21 发布日期:2023-05-05
  • 通讯作者: Qinghong Liao E-mail:nculqh@163.com
  • 基金资助:
    Project supported by the National Natural Science Foundation of China (Grant No. 62061028), the Opening Project of Shanghai Key Laboratory of Special Artificial Microstructure Materials and Technology (Grant No. ammt2021A-4), the Foundation for Distinguished Young Scientists of Jiangxi Province (Grant No. 20162BCB23009), the Open Research Fund Program of the State Key Laboratory of LowDimensional Quantum Physics (Grant No. KF202010), the Interdisciplinary Innovation Fund of Nanchang University (Grant No. 9166-27060003-YB12), the Open Research Fund Program of Key Laboratory of Opto-Electronic Information Acquisition and Manipulation of Ministry of Education (Grant No. OEIAM202004), and the Graduate Innovation Special Fund of Jiangxi Province (Grant No. YC2021-S054).

Tunable magnomechanically induced transparency and fast-slow light in a hybrid cavity magnomechanical system

Qinghong Liao(廖庆洪)1,2,†, Kun Peng(彭坤)1, and Haiyan Qiu(邱海燕)1   

  1. 1 Department of Electronic Information Engineering, Nanchang University, Nanchang 330031, China;
    2 State Key Laboratory of Low-Dimensional Quantum Physics, Department of Physics, Tsinghua University, Beijing 100084, China
  • Received:2022-08-08 Revised:2022-12-09 Accepted:2022-12-30 Online:2023-04-21 Published:2023-05-05
  • Contact: Qinghong Liao E-mail:nculqh@163.com
  • Supported by:
    Project supported by the National Natural Science Foundation of China (Grant No. 62061028), the Opening Project of Shanghai Key Laboratory of Special Artificial Microstructure Materials and Technology (Grant No. ammt2021A-4), the Foundation for Distinguished Young Scientists of Jiangxi Province (Grant No. 20162BCB23009), the Open Research Fund Program of the State Key Laboratory of LowDimensional Quantum Physics (Grant No. KF202010), the Interdisciplinary Innovation Fund of Nanchang University (Grant No. 9166-27060003-YB12), the Open Research Fund Program of Key Laboratory of Opto-Electronic Information Acquisition and Manipulation of Ministry of Education (Grant No. OEIAM202004), and the Graduate Innovation Special Fund of Jiangxi Province (Grant No. YC2021-S054).

摘要: We theoretically explore the tunability of magnomechanically induced transparency (MMIT) phenomenon and fast-slow light effect in a hybrid cavity magnomechanical system in which a high-quality yttrium iron garnet (YIG) sphere and an atomic ensemble are placed inside a microwave cavity. In the probe output spectrum, we can observe magnon-induced transparency (MIT) and MMIT due to the photon-magnon and phonon-magnon couplings. We further investigate the effect of atomic ensemble on the absorption spectrum. The results show that better transparency can be obtained by choosing appropriate atomic ensemble parameters. We give an explicit explanation for the mechanism of the Fano resonance phenomenon. Moreover, we discuss phenomena of slow-light propagation. The maximum group delay increases significantly with the increasing atom-cavity coupling strength, and the conversion between slow light and fast light can also be achieved by adjusting the atom-cavity coupling strength. These results may have potential applications for quantum information processing and high precision measurements.

关键词: magnomechanical system, atomic ensemble, magnomechanically induced transparency, fast and slow light

Abstract: We theoretically explore the tunability of magnomechanically induced transparency (MMIT) phenomenon and fast-slow light effect in a hybrid cavity magnomechanical system in which a high-quality yttrium iron garnet (YIG) sphere and an atomic ensemble are placed inside a microwave cavity. In the probe output spectrum, we can observe magnon-induced transparency (MIT) and MMIT due to the photon-magnon and phonon-magnon couplings. We further investigate the effect of atomic ensemble on the absorption spectrum. The results show that better transparency can be obtained by choosing appropriate atomic ensemble parameters. We give an explicit explanation for the mechanism of the Fano resonance phenomenon. Moreover, we discuss phenomena of slow-light propagation. The maximum group delay increases significantly with the increasing atom-cavity coupling strength, and the conversion between slow light and fast light can also be achieved by adjusting the atom-cavity coupling strength. These results may have potential applications for quantum information processing and high precision measurements.

Key words: magnomechanical system, atomic ensemble, magnomechanically induced transparency, fast and slow light

中图分类号:  (Quantum optics)

  • 42.50.-p
42.50.Nn (Quantum optical phenomena in absorbing, amplifying, dispersive and conducting media; cooperative phenomena in quantum optical systems) 42.50.Ct (Quantum description of interaction of light and matter; related experiments) 42.50.Md (Optical transient phenomena: quantum beats, photon echo, free-induction decay, dephasings and revivals, optical nutation, and self-induced transparency)