发表机构
School of Mathematics and Statistics, Hainan Normal University（海南师范大学数学与统计学院）
机构由 AI 辅助整理，请以论文原文为准。AI 中文总结
本研究通过Unruh-DeWitt探测器模型，发现均匀加速下量子电池的ergotropy仅在电池加速时突然出现，而充电器加速无此效应，揭示Unruh效应对电池性能的双重影响，连接相对论量子场论与量子热力学。
AI 中文摘要
我们研究了均匀加速度对量子电池ergotropy的影响，该电池被建模为Unruh-DeWitt探测器，并在双体和三体设置中进行了探讨。在双体系统中，我们系统地比较了三种场景：加速电池、加速充电器以及同时加速两者。我们发现，只有电池加速能在临界加速度阈值处诱导ergotropy的突然出现，而相应的复合系统能量变化可能增加或减少，这取决于加速开始时系统的初始状态。充电器加速在微扰范围内使电池ergotropy保持不变，而同时加速则由于q依赖性的相干抵消导致单调衰减。扩展到具有一个电池和两个充电器的三体系统，我们发现电池加速再次诱导ergotropy的出现，而加速相邻充电器则不会——这与双体充电器加速的情况一致。这些结果表明，Unruh效应扮演着双重角色，既增强又降低量子电池的性能，具体取决于哪个子系统被加速以及多体结构，从而将相对论量子场论与量子热力学联系起来，并适用于实验可访问的平台。
英文摘要
We study the effects of uniform acceleration on the ergotropy of quantum batteries modeled as Unruh-DeWitt detectors, in both bipartite and tripartite setups. In the bipartite system, we systematically compare three scenarios: accelerating the battery, accelerating the charger, and accelerating both simultaneously. We find that only battery acceleration can induce a sudden emergence of ergotropy at a critical acceleration threshold, while the corresponding composite-system energy change may increase or decrease depending on the initial state at the onset of acceleration. Charger acceleration leaves the battery ergotropy constant within the perturbative regime, while simultaneous acceleration leads to monotonic decay due to coherent cancellation of the q-dependence. Extending to a tripartite system with one battery and two chargers, we find that battery acceleration again induces ergotropy emergence, whereas accelerating adjacent charger does not--consistent with the bipartite charger-acceleration case. These results reveal that the Unruh effect plays a dual role, both enhancing and degrading quantum battery performance, depending on which subsystem is accelerated and on the multipartite structure, bridging relativistic quantum field theory and quantum thermodynamics with relevance to experimentally accessible platforms.
Comments13 pages, 3 figures
Journal refJ. Phys. A: Math. Theor. 59 365301(2026)
