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Chin. Phys. B, 2026, Vol. 35(3): 034204    DOI: 10.1088/1674-1056/adfef9
ELECTROMAGNETISM, OPTICS, ACOUSTICS, HEAT TRANSFER, CLASSICAL MECHANICS, AND FLUID DYNAMICS Prev   Next  

Ultrafast charging quantum battery with cavity-cavity interactions

Zhuoheng Wang(王卓恒), Zefeng Huang(黄泽丰), Dayang Zhang(张大洋), Yu Zhao(赵愈), Youbin Yu(俞友宾)†, Guangri Jin(金光日), and Aixi Chen(陈爱喜)
Zhejiang Key Laboratory of Quantum State Control and Optical Field Manipulation, Department of Physics, Zhejiang Sci-Tech University, Hangzhou 310018, China
Abstract  We present a quantum battery model comprising two lossless cavities that interact through a controlled photon-hopping mechanism, each housing an isolated two-level atom. This study explores the possibility of influencing the interaction between cavities within the traditional two single-cavity working modes, thereby paving the way for enhanced charging performance. By solving the generalized double Jaynes-Cummings model with cavity-cavity interactions, we demonstrate the positive impact of such interactions on battery charging, enabling the quantum battery to outperform the single-cavity case in terms of charging time and average charging power. Additionally, we investigate the influence of different cavity-cavity interaction strengths on charging efficiency and attempt to explain the underlying mechanisms by analyzing the entanglement within the system.
Keywords:  cavity-cavity quantum battery      energy transportation      entanglement  
Received:  14 June 2025      Revised:  08 August 2025      Accepted manuscript online:  26 August 2025
PACS:  42.50.-p (Quantum optics)  
  37.30.+i (Atoms, molecules, andions incavities)  
  64.70.qd (Thermodynamics and statistical mechanics)  
Fund: Project supported by the Zhejiang Provincial Natural Science Foundation of China (Grant No. LD25A050001), the National Natural Science Foundation of China (Grant Nos. 61975184, 12175199, and 12075209), the Quantum Science and Technology-National Science and Technology Major Project (Grant No. 2023ZD0300904), and the Science Foundation of Zhejiang Sci-Tech University (Grant Nos. 19062151- Y and 18062145-Y).
Corresponding Authors:  Youbin Yu     E-mail:  ybyu@zstu.edu.cn

Cite this article: 

Zhuoheng Wang(王卓恒), Zefeng Huang(黄泽丰), Dayang Zhang(张大洋), Yu Zhao(赵愈), Youbin Yu(俞友宾), Guangri Jin(金光日), and Aixi Chen(陈爱喜) Ultrafast charging quantum battery with cavity-cavity interactions 2026 Chin. Phys. B 35 034204

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