AI 中文总结
研究原子环中次辐射激发的相干控制，通过阵列外部几何形状与原子偶极取向动态控制，实现局部捕获和相干传输，展示了局部激发绝热传输、激发相干转移及相互作用诱导条件相移，证明其用于相干光子量子信息处理的潜力。
AI 中文摘要
在有序的亚波长原子阵列中，由于相邻发射器散射光之间的干涉，集体激发可表现出强烈抑制的辐射衰减。这些所谓的次辐射态使这些系统成为存储和操纵光子激发的有前途的平台。阵列的外部几何形状与原子偶极取向的动态控制相结合，可以实现这些次辐射激发的局部捕获和相干传输。在此，我们在理论上证明了环形原子阵列中的这些能力。具体而言，我们展示了局部激发在单个环周围的绝热传输、单个激发在两个相邻环之间具有几何控制选择性的相干转移，以及相邻环中两个同时捕获的激发之间的相互作用诱导的条件相移。后者可解释为存储激发之间的有效受控相位操作。这些结果共同证明了有序原子阵列作为具有耗散保护集体激发的相干光子量子信息处理平台的潜力。
英文摘要
Collective excitations in ordered subwavelength atomic arrays can exhibit strongly suppressed radiative decay due to interference between light scattered by neighboring emitters. These so-called subradiant states make these systems a promising platform for storing and manipulating photonic excitations. The external geometry of the array, combined with dynamical control of the atomic dipole orientation, enables localized trapping and coherent transport of these subradiant excitations. Here, we theoretically demonstrate these capabilities in ring-shaped atomic arrays. Specifically, we show adiabatic transport of a localized excitation around a single ring, coherent transfer of a single excitation between two neighboring rings with geometry-controlled selectivity, and interaction-induced conditional phase shifts between two simultaneously trapped excitations in neighboring rings. The latter can be interpreted as effective controlled-phase operations between stored excitations. Together, these results demonstrate the potential of ordered atomic arrays as a platform for coherent photonic quantum information processing with dissipation-protected collective excitations.
Comments9 pages, 7 figures
