Suppressing Degradation in Quantum Batteries by Electromagnetically-induced Transparency
arXiv:2509.14707 · doi:10.1002/andp.202500278
Abstract
Quantum batteries (QBs), as emerging quantum devices for energy storage and transfer, have attracted significant attention due to their potential to surpass classical batteries in charging efficiency and energy density. However, interactions between a QB and its environment result in decoherence, which significantly reduces its operational lifespan. In this work, we propose suppressing the aging of QBs by introducing the electromagnetically-induced transparency (EIT). Specifically, we model a four-level atom as a QB with an effective two-level system enabled by the EIT, while the photons in the cavity serve as the energy charger. By comparing the energy and extractable work of the QB with and without the EIT effect, we demonstrate that the QBs incorporating the EIT exhibit enhanced resistance to spontaneous decay as compared to their counterparts without the EIT. We believe that our findings may provide valuable insights and shed the light on the design principles for mitigating the degradation of the QBs.
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