中国物理B ›› 2025, Vol. 34 ›› Issue (10): 100302-100302.doi: 10.1088/1674-1056/add50d

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Dicke-Ising quantum battery of an ion chain driven by a mechanical oscillator

Jun Wen(文军)1, Zheng Wen(文政)2, Ping Peng(彭娉)3, and Guan-Qiang Li(李冠强)3,†   

  1. 1 School of Mathematics, Physics and Statistics, Sichuan Minzu College, Ganzi 626001, China;
    2 Office of Physics and Chemistry, Army Academy of Border and Coastal Defence, Xi'an 710108, China;
    3 Department of Physics and Institute of Theoretical Physics, Shaanxi University of Science and Technology, Xi'an 710021, China
  • 收稿日期:2025-04-03 修回日期:2025-05-03 接受日期:2025-05-07 发布日期:2025-10-15
  • 通讯作者: Guan-Qiang Li E-mail:liguanqiang@sust.edu.cn
  • 基金资助:
    Project supported by the Research Foundation of Sichuan Minzu College (Grant No. KYQD2402C), the National Natural Science Foundation of China (Grant No. 11405100), and the Natural Science Basic Research Plan in Shaanxi Province, China (Grant Nos. 2019JM-332 and 2020JM-507).

Dicke-Ising quantum battery of an ion chain driven by a mechanical oscillator

Jun Wen(文军)1, Zheng Wen(文政)2, Ping Peng(彭娉)3, and Guan-Qiang Li(李冠强)3,†   

  1. 1 School of Mathematics, Physics and Statistics, Sichuan Minzu College, Ganzi 626001, China;
    2 Office of Physics and Chemistry, Army Academy of Border and Coastal Defence, Xi'an 710108, China;
    3 Department of Physics and Institute of Theoretical Physics, Shaanxi University of Science and Technology, Xi'an 710021, China
  • Received:2025-04-03 Revised:2025-05-03 Accepted:2025-05-07 Published:2025-10-15
  • Contact: Guan-Qiang Li E-mail:liguanqiang@sust.edu.cn
  • Supported by:
    Project supported by the Research Foundation of Sichuan Minzu College (Grant No. KYQD2402C), the National Natural Science Foundation of China (Grant No. 11405100), and the Natural Science Basic Research Plan in Shaanxi Province, China (Grant Nos. 2019JM-332 and 2020JM-507).

摘要: A scheme for implementing quantum batteries in a realizable and controllable platform based on a trapped ion chain driven by a mechanical oscillator is proposed. The effects of the hopping interaction between the two-level ions and the coupling interaction between the ions and the external mechanical oscillator on the charging process of the battery are investigated. The importance of the counter-rotating wave terms in the system's Hamiltonian, which are often ignored, is analyzed, and it is found that the charging energy and the ergotropy of the battery are dramatically affected by the counter-rotating wave terms. The quantum phase transition of the two-level system is restrained by the counter-rotating wave terms due to the destruction of the quantum coherence. Lastly, the power-law dependence of the charging process on the distance between the ions is discussed. Our theoretical analysis provides a solid foundation for the development of a practical quantum battery.

关键词: quantum battery, Dicke-Ising model, charging ergotropy, trapped ion chain

Abstract: A scheme for implementing quantum batteries in a realizable and controllable platform based on a trapped ion chain driven by a mechanical oscillator is proposed. The effects of the hopping interaction between the two-level ions and the coupling interaction between the ions and the external mechanical oscillator on the charging process of the battery are investigated. The importance of the counter-rotating wave terms in the system's Hamiltonian, which are often ignored, is analyzed, and it is found that the charging energy and the ergotropy of the battery are dramatically affected by the counter-rotating wave terms. The quantum phase transition of the two-level system is restrained by the counter-rotating wave terms due to the destruction of the quantum coherence. Lastly, the power-law dependence of the charging process on the distance between the ions is discussed. Our theoretical analysis provides a solid foundation for the development of a practical quantum battery.

Key words: quantum battery, Dicke-Ising model, charging ergotropy, trapped ion chain

中图分类号:  (Quantum mechanics)

  • 03.65.-w
05.70.-a (Thermodynamics) 65.80.-g (Thermal properties of small particles, nanocrystals, nanotubes, and other related systems)