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无线量子电池中的量子相干性与纠缠

Quantum coherence and entanglement in wireless quantum batteries

Jun-Jie Jiang, Jin-Di Cao, Yu-Fei Zhang, Meng-Long Song, Dong Wang

arXiv 2607.27718首次发表:更新:

AI 中文总结

该研究分析无线量子电池系统的充电动力学与热力学性能,利用资源理论分析,揭示非马尔可夫效应、耦合对称性及相干性对能量传输的调控作用,为量子储能装置设计提供理论框架。

AI 中文摘要

我们研究由共同结构化玻色环境介导的无线量子电池系统的充电动力学与热力学性能。通过采用统一的资源理论分析,阐明了非马尔可夫记忆效应和耦合对称性在调控能量传递中的不同作用。在马尔可夫弱耦合区域,我们发现一种转变机制:$l_1$-范数相干性的动态重构可补偿一阶相干性的单调衰减,以维持能量传输。相反,非马尔可夫强耦合区域会促进协同共振,其特征是环境回流诱导的纠缠与存储能量同步振荡。此外,我们揭示耦合对称性是关键控制参数:非对称耦合(有利于电池)在无记忆环境中优化能量增益,而强相互作用下的对称耦合可解锁暗态保护机制,将能量有效束缚在无退相干子空间中。最后,基于功的热力学分析表明,一阶相干性为非相干功设定激活阈值,而$l_1$-范数相干性是提取相干功的明确燃料。这些发现为设计环境辅助量子储能装置提供了精细的理论框架。

英文摘要

We investigate the charging dynamics and thermodynamic performance of a wireless quantum battery system mediated by a common structured bosonic environment. By employing a unified resource-theoretic analysis, we elucidate the distinct roles of non-Markovian memory effects and coupling symmetry in regulating energy transfer. In the Markovian weak-coupling regime, we identify a transformative mechanism where the dynamic reconstruction of $l_1$-norm coherence compensates for the monotonic decay of first-order coherence to sustain energy transport. Conversely, the non-Markovian strong-coupling regime facilitates a cooperative resonance, characterized by the synchronized oscillation of entanglement and stored energy induced by environmental backflow. Furthermore, we reveal that coupling symmetry acts as a critical control parameter: while asymmetric coupling favoring the battery optimizes energy gain in memoryless environments, symmetric coupling under strong interactions unlocks a dark-state protection mechanism, effectively trapping energy within a decoherence-free subspace. Finally, a thermodynamic analysis based on ergotropy demonstrates that first-order coherence establishes the activation threshold for incoherent work, whereas $l_1$-norm coherence serves as the explicit fuel for coherent work extraction. These findings provide a refined theoretical framework for engineering environment-assisted quantum energy storage devices.

Comments12 pages, 11 figures, comments are welcome. Accepted by Physical Review A

Journal refPhysical Review A 114, 022420 (2026)

DOI:10.1103/hfrl-kwcd

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