波导量子电池中的稳定长程充电与边界介导阈值

中文摘要 AI 辅助

波导集成架构有望实现充电器、传输通道和量子电池在模块化、可独立优化设计中的可扩展片上集成。我们研究了一个由两个发射器耦合到半无限波导组成的最小充电配置，并确定了最优充电机制，其中由带外束缚态驱动的非马尔可夫动力学导致存储能量的单频振荡。我们表明，在弱至中等耦合强度下，通过失谐控制可实现接近统一的充电效率，前提是电池到边界的距离$n$小于充电器到边界的距离$m$的三倍（$n<3m$）——这一约束由镜面诱导反馈施加——而平均充电功率随空间间隔$n-m$呈指数衰减。这些发现为单片固态量子能量存储与传输提供了有用的见解。

英文摘要

The waveguide-integrated architecture holds promise for scalable on-chip integration of a charger, a transmission channel, and a quantum battery in a modular, independently optimizable design. We investigate a minimal charging configuration consisting of two emitters coupled to a semi-infinite waveguide and identify the optimal charging mechanism, wherein non-Markovian dynamics driven by out-of-band bound states give rise to single-frequency oscillations of the stored energy. We show that near-unity charging efficiency is achievable at weak to moderate coupling strengths via detuning control, provided that the battery-to-boundary separation $n$ is less than three times the charger-to-boundary separation $m$ ($n<3m$)---a constraint imposed by the mirror-induced feedback---while the average charging power decays exponentially with the spatial separation $n-m$. These findings offer useful insights for monolithic solid-state quantum energy storage and transport.

发表机构

• Kunming University of Science and Technology（昆明理工大学）

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