中国物理B ›› 2026, Vol. 35 ›› Issue (1): 10303-010303.doi: 10.1088/1674-1056/ae1df2

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Enhancing the performance of quantum battery by squeezing reservoir engineering

Yue Li(李月)1,2, Rong-Fang Liu(刘蓉芳)1,3, Jia-Bin You(游佳斌)4,5,†, Wan-Li Yang(杨万里)1,‡, and Hua Guan(管桦)1   

  1. 1 State Key Laboratory of Magnetic Resonance and Atomic and Molecular Physics, Innovation Academy for Precision Measurement Science and Technology, Chinese Academy of Sciences, Wuhan 430071, China;
    2 School of Physical Sciences, University of Chinese Academy of Sciences, Beijing 100049, China;
    3 Key Laboratory of Quantum Theory and Applications of MoE, Lanzhou Center for Theoretical Physics, and Key Laboratory of Theoretical Physics of Gansu Province, Lanzhou University, Lanzhou 730000, China;
    4 Quantum Innovation Centre (Q. InC), Agency for Science, Technology and Research (A*STAR), Singapore 138634, Republic of Singapore;
    5 Institute of High Performance Computing (IHPC), Agency for Science, Technology and Research (A*STAR), Singapore 138632, Republic of Singapore
  • 收稿日期:2025-10-22 修回日期:2025-11-06 接受日期:2025-11-11 发布日期:2025-12-30
  • 通讯作者: Jia-Bin You, Wan-Li Yang E-mail:you_jiabin@a-star.edu.sg;ywl@wipm.ac.cn
  • 基金资助:
    This project is supported by the National Natural Science Foundation of China (Grants No. 12274422) and the Natural Science Foundation of Hubei Province (Grant No. 2022CFA013). J.-B. Y. acknowledges support from A*STAR (Grant Nos. C230917003 and C230917007) and Q.InC Strategic Research and Translational Thrust.

Enhancing the performance of quantum battery by squeezing reservoir engineering

Yue Li(李月)1,2, Rong-Fang Liu(刘蓉芳)1,3, Jia-Bin You(游佳斌)4,5,†, Wan-Li Yang(杨万里)1,‡, and Hua Guan(管桦)1   

  1. 1 State Key Laboratory of Magnetic Resonance and Atomic and Molecular Physics, Innovation Academy for Precision Measurement Science and Technology, Chinese Academy of Sciences, Wuhan 430071, China;
    2 School of Physical Sciences, University of Chinese Academy of Sciences, Beijing 100049, China;
    3 Key Laboratory of Quantum Theory and Applications of MoE, Lanzhou Center for Theoretical Physics, and Key Laboratory of Theoretical Physics of Gansu Province, Lanzhou University, Lanzhou 730000, China;
    4 Quantum Innovation Centre (Q. InC), Agency for Science, Technology and Research (A*STAR), Singapore 138634, Republic of Singapore;
    5 Institute of High Performance Computing (IHPC), Agency for Science, Technology and Research (A*STAR), Singapore 138632, Republic of Singapore
  • Received:2025-10-22 Revised:2025-11-06 Accepted:2025-11-11 Published:2025-12-30
  • Contact: Jia-Bin You, Wan-Li Yang E-mail:you_jiabin@a-star.edu.sg;ywl@wipm.ac.cn
  • Supported by:
    This project is supported by the National Natural Science Foundation of China (Grants No. 12274422) and the Natural Science Foundation of Hubei Province (Grant No. 2022CFA013). J.-B. Y. acknowledges support from A*STAR (Grant Nos. C230917003 and C230917007) and Q.InC Strategic Research and Translational Thrust.

摘要: Reservoir engineering has been widely used in various quantum technologies. Based on a cavity-QED (quantum electrodynamics) model, we propose a potentially practical scheme using squeezed-vacuum reservoir engineering to optimize the performance of a quantum battery (QB) located inside a cavity driven by a broadband squeezed laser, which acts as a squeezed-vacuum reservoir. Using the reduced master equation of the QB obtained via the adiabatic elimination method, we focus on the QB’s charging dynamics under tunable squeezed reservoirs governed by parametrically controlled squeezing parameters, which dictate the efficiency of energy transfer and the extractable work (ergotropy) of the QB. We show that increasing the squeezing strength improves the charging rate and enables rapid energy transfer, whereas the steady-state energy of the QB saturates at specific values of the squeezing parameter. Notably, the ergotropy of the QB reaches its maximum at a critical squeezing strength and does not scale monotonically with the squeezing strength. This nonmonotonic behavior underscores the existence of optimal parameter regimes, through which the performance of the QB can be significantly enhanced.

关键词: quantum computation, cavity quantum electrodynamics

Abstract: Reservoir engineering has been widely used in various quantum technologies. Based on a cavity-QED (quantum electrodynamics) model, we propose a potentially practical scheme using squeezed-vacuum reservoir engineering to optimize the performance of a quantum battery (QB) located inside a cavity driven by a broadband squeezed laser, which acts as a squeezed-vacuum reservoir. Using the reduced master equation of the QB obtained via the adiabatic elimination method, we focus on the QB’s charging dynamics under tunable squeezed reservoirs governed by parametrically controlled squeezing parameters, which dictate the efficiency of energy transfer and the extractable work (ergotropy) of the QB. We show that increasing the squeezing strength improves the charging rate and enables rapid energy transfer, whereas the steady-state energy of the QB saturates at specific values of the squeezing parameter. Notably, the ergotropy of the QB reaches its maximum at a critical squeezing strength and does not scale monotonically with the squeezing strength. This nonmonotonic behavior underscores the existence of optimal parameter regimes, through which the performance of the QB can be significantly enhanced.

Key words: quantum computation, cavity quantum electrodynamics

中图分类号:  (Quantum computation architectures and implementations)

  • 03.67.Lx
42.50.Pq (Cavity quantum electrodynamics; micromasers)