发表机构
Institute for Quantum Science and Engineering, Texas A&M University（德州农工大学量子科学与工程研究所）
机构由 AI 辅助整理，请以论文原文为准。AI 中文总结
本研究探讨压缩波导中多发射体量子电池，发现几何结构通过控制非经典相关性，可调制可提取功，甚至切换电池的被动性。
AI 中文摘要
利用非经典资源来提升量子电池的性能是量子技术的一个重要目标。在本工作中，我们研究了耦合到一维波导的多发射体电池，该波导由宽带压缩真空库驱动，并确定了波导几何结构如何控制电池性能及其热力学特性。我们表明，对于单个发射体，压缩库沉积有限能量，而状态保持被动，产生零可提取功。然而，对于两个发射体，相位敏感的库相关性产生相干性，并能将稳态驱动到完全非被动区域。对于三个发射体，集体热动力学已经支持有限的可提取功，而压缩进一步增加了存储能量的可提取部分。关键的是，由于集体和相位敏感的耦合依赖于发射体位置，几何结构直接控制非经典相关性，从而控制稳态的非被动性。因此，可提取功可以被强烈调制，而存储能量仅微弱变化，并且在双发射体配置中，仅几何结构就能在被动稳态和所有存储能量均可幺正提取的稳态之间切换电池。
英文摘要
Harnessed nonclassical resources to enhance the performance of quantum batteries is an important goal of quantum technology. In this work, we investigate multi-emitter batteries coupled to a one-dimensional waveguide driven by a broadband squeezed-vacuum reservoir, and determine how the waveguide geometry controls the battery performance and and their thermodynamic features. We show that for a single emitter, the squeezed reservoir deposits finite energy while the state remains passive, yielding zero ergotropy. For two emitters, however, phase-sensitive reservoir correlations generate coherence and can drive the steady state into a fully nonpassive regime. For three emitters, collective thermal dynamics already supports finite ergotropy, while squeezing further increases the extractable component of the stored energy. Crucially, because the collective and phase-sensitive couplings depend on the emitter positions, geometry provides direct control over the nonclassical correlations and, consequently, over the nonpassivity of the steady state. The ergotropy can therefore be strongly modulated while the stored energy changes only weakly, and in the two-emitter configuration geometry alone can switch the battery between a passive steady state and one in which all stored energy is unitarily extractable.
