AI 中文总结
该研究提出利用一维耦合腔阵列形成的原子-光子束缚态，抑制量子电池远程充电时的辐射泄漏，实现相干能量传递，并分析了束缚态特性对充电时间、有功功及损耗的影响。
AI 中文摘要
量子电池（QB）的远程充电受限于激发态向作为能量传递媒介的光子环境的辐射泄漏。我们考虑一个由两个两能级系统（TLS）组成的充电器-电池模型，这两个TLS分别局域耦合到一维耦合腔阵列的两个位点。当它们的跃迁频率处于传播带之外时，系统会形成具有局域光子分量的原子-光子束缚态，这些分量的重叠会解除偶宇称和奇宇称束缚态的简并，产生驱动从充电器到量子电池的相干能量传递的能级分裂。通过这种方式，带隙抑制了共振发射，而局域束缚态介导了远程充电。从宇称分辨谱中，我们将充电时间与能级分裂关联，将带电ergotropy（有功功）与TLS布居在束缚态上的比例关联。更靠近带边的束缚态会扩展TLS的相互作用范围，但包含较大的光子分量，因此更容易受光子损耗的影响。
英文摘要
Remote charging of a quantum battery (QB) is hindered by radiative leakage of the excitation into the photonic environment that acts as a mediator for energy transfer. We consider a charger-battery model consisting of two two-level systems (TLSs) that are locally coupled to two sites of a one-dimensional coupled cavity array. When their transition frequency lies outside the propagation band, the system forms atom-photon bound states with localized photonic components, and the overlap of these components lifts the degeneracy of the even- and odd-parity bound states, yielding an energy splitting that drives coherent energy transfer from the charger to the QB. In this way, the band gap suppresses resonant emission and the localized bound states mediate remote charging. From the parity-resolved spectrum, we relate the charging time to the energy splitting and the charged ergotropy to the fraction of TLS population on the bound states. Bound states closer to the band edge extend the interaction range of the TLSs but contain a large photonic fraction and are consequently more susceptible to photon loss.
Comments8 pages, 5 figures
