中国物理B ›› 2026, Vol. 35 ›› Issue (3): 37501-037501.doi: 10.1088/1674-1056/adfa7a

• • 上一篇    

Dissipative-coupling-induced magnomechanical chaos

Qin Wu(吴琴)1,2,†, Jiao Peng(彭椒)3, Yu-Dong Chen(陈毓东)1, and Zeng-Xing Liu(刘增星)3   

  1. 1 The First Dongguan Affiliated Hospital, Guangdong Medical University, Dongguan 523808, China;
    2 School of Biomedical Engineering, Guangdong Medical University, Dongguan 523808, China;
    3 School of Electronic Engineering & Intelligentization, Dongguan University of Technology, Dongguan 523808, China
  • 收稿日期:2025-04-21 修回日期:2025-08-11 接受日期:2025-08-12 发布日期:2026-02-11
  • 基金资助:
    This work was supported by the National Natural Science Foundation of China (Grant No. 12105047) and Guangdong Basic and Applied Basic Research Foundation (Grant No. 2022A1515010446).

Dissipative-coupling-induced magnomechanical chaos

Qin Wu(吴琴)1,2,†, Jiao Peng(彭椒)3, Yu-Dong Chen(陈毓东)1, and Zeng-Xing Liu(刘增星)3   

  1. 1 The First Dongguan Affiliated Hospital, Guangdong Medical University, Dongguan 523808, China;
    2 School of Biomedical Engineering, Guangdong Medical University, Dongguan 523808, China;
    3 School of Electronic Engineering & Intelligentization, Dongguan University of Technology, Dongguan 523808, China
  • Received:2025-04-21 Revised:2025-08-11 Accepted:2025-08-12 Published:2026-02-11
  • Contact: Qin Wu E-mail:wuqin@gdmu.edu.cn
  • Supported by:
    This work was supported by the National Natural Science Foundation of China (Grant No. 12105047) and Guangdong Basic and Applied Basic Research Foundation (Grant No. 2022A1515010446).

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摘要： Chaotic motion that exhibits extraordinary dynamic behavior has attracted particular attention in magnonics in the context of understanding nonlinear magnomechanical interaction. Here, we theoretically explore the magnomechanical chaos induced by dissipative coupling in an open cavity magnomechanical system. Numerical calculations of the magnomechanical dynamics show that the introduction of dissipative coupling can greatly enhance the nonlinearity of the system and induces ultra-low driving threshold chaotic motion, which effectively solves the bottleneck that the weak magnetostrictive interaction cannot trigger chaotic motion in a cavity magnomechanical system. Furthermore, we find that the degree of chaos represented by the Lyapunov exponent can be well tuned by changing the dissipative coupling strength. In addition to providing insight into chaotic behavior in open magnomechanical systems, dissipative-coupling-induced chaotic motion may also hold for other magnonic quantum systems since magnons possess excellent compatibility with other quasiparticles, and may find applications in the chaotic transfer of information.

关键词: cavity magnomechanical system, magnetostrictive interaction, chaotic motion

Abstract: Chaotic motion that exhibits extraordinary dynamic behavior has attracted particular attention in magnonics in the context of understanding nonlinear magnomechanical interaction. Here, we theoretically explore the magnomechanical chaos induced by dissipative coupling in an open cavity magnomechanical system. Numerical calculations of the magnomechanical dynamics show that the introduction of dissipative coupling can greatly enhance the nonlinearity of the system and induces ultra-low driving threshold chaotic motion, which effectively solves the bottleneck that the weak magnetostrictive interaction cannot trigger chaotic motion in a cavity magnomechanical system. Furthermore, we find that the degree of chaos represented by the Lyapunov exponent can be well tuned by changing the dissipative coupling strength. In addition to providing insight into chaotic behavior in open magnomechanical systems, dissipative-coupling-induced chaotic motion may also hold for other magnonic quantum systems since magnons possess excellent compatibility with other quasiparticles, and may find applications in the chaotic transfer of information.

Key words: cavity magnomechanical system, magnetostrictive interaction, chaotic motion

中图分类号:  (Spin waves)

  • 75.30.Ds
75.80.+q (Magnetomechanical effects, magnetostriction) 05.45.-a (Nonlinear dynamics and chaos) 05.45.Pq (Numerical simulations of chaotic systems)