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Quantum battery dynamics in polar molecular systems

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Listed:
  • Zhang, Zuo-Yuan
  • Zhou, Yi-Li
  • Li, Jin-Fang
  • Hu, Jie-Ru
  • Liu, Jin-Ming
  • Huang, Xinning
  • Sun, Zhaoxi

Abstract

Quantum batteries (QBs) are quantum systems specifically engineered for efficient energy storage and extraction. In this work, we model a QB as a linear chain consisting of N polar molecules coupled via dipole–dipole interactions. The molecular QB is trapped in a one-dimensional optical lattice and charged by an external electric field. Through numerical simulations, we find that the maximum stored energy and charging power of the QB are enhanced by a stronger applied electric field, along with a greater molecular number. Moreover, the electric field strength determines the effect of dipole–dipole coupling on the QB, ranging from enhanced maximum energy with approximatively synchronous energy-coherence dynamics under weak fields to reduced energy with roughly anti-phase dynamics under strong fields. Furthermore, the role of thermal effects is considered, and the technique of weak measurement reversal is employed to enhance the performance of the molecular QB in a thermal equilibrium state. Our findings are expected to facilitate the achievement of molecule-based quantum energy storage systems.

Suggested Citation

  • Zhang, Zuo-Yuan & Zhou, Yi-Li & Li, Jin-Fang & Hu, Jie-Ru & Liu, Jin-Ming & Huang, Xinning & Sun, Zhaoxi, 2026. "Quantum battery dynamics in polar molecular systems," Physica A: Statistical Mechanics and its Applications, Elsevier, vol. 681(C).
    • Handle: RePEc:eee:phsmap:v:681:y:2026:i:c:s0378437125007782
    DOI: 10.1016/j.physa.2025.131126
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    References listed on IDEAS

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    1. Hu, Jie-Ru & Zhang, Zuo-Yuan & Liu, Jin-Ming, 2024. "Implementation of three-qubit Deutsch-Jozsa algorithm with pendular states of polar molecules by optimal control," Physica A: Statistical Mechanics and its Applications, Elsevier, vol. 635(C).
    2. Verma, Disha & V.S, Indrajith & Sankaranarayanan, R., 2025. "Dynamics of Heisenberg XYZ two-spin quantum battery," Physica A: Statistical Mechanics and its Applications, Elsevier, vol. 659(C).
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