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Coherent quantum feedback-enhanced synchronization in a cavity-magnon system

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  • Yang, Rong-Can
  • Lin, Yue-Han
  • Lin, Ya-Qin
  • Lin, Zhi-Ying
  • Li, Fang
  • Liu, Hong-Yu

Abstract

Synchronization serves as a critical criterion for establishing strong correlations within coupled multi-mode systems. Here, we propose a scheme to enhance classical and quantum synchronization for two microwave cavities in a cavity-magnon system using coherent quantum feedback (CQFB). Our results demonstrate that both types of synchronization can be simultaneously enhanced within the same parameter regimes. The application of the CQFB loop to one of the microwave cavities leads to an inconsistency in the dissipation rates between the two cavities, and then effectively mitigate the impact of thermal noise on the system, thereby enhancing the robustness of synchronization against variations of bath temperatures. This study reveals novel dimensions of synchronization enabled by CQFB in microwave systems.

Suggested Citation

  • Yang, Rong-Can & Lin, Yue-Han & Lin, Ya-Qin & Lin, Zhi-Ying & Li, Fang & Liu, Hong-Yu, 2025. "Coherent quantum feedback-enhanced synchronization in a cavity-magnon system," Chaos, Solitons & Fractals, Elsevier, vol. 199(P1).
    • Handle: RePEc:eee:chsofr:v:199:y:2025:i:p1:s096007792500699x
    DOI: 10.1016/j.chaos.2025.116686
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    References listed on IDEAS

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