Quantum coherence and entanglement in wireless quantum batteries

• URL: http://arxiv.org/abs/2607.27718v1
• Date: Thu, 30 Jul 2026 05:56:37 GMT
• Title: Quantum coherence and entanglement in wireless quantum batteries
• Abstract summary: We investigate the charging dynamics and thermodynamic performance of a wireless quantum battery system mediated by a bosonic environment.<n>By employing a unified resource-theoretic analysis, we elucidate the roles of non-Markovian memory effects and coupling symmetry in regulating energy transfer.
• Score: 5.6366350961410525
• License: http://arxiv.org/licenses/nonexclusive-distrib/1.0/
• Abstract: 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.

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