标题： 远距离原子阵列中的亚辐射贝尔态 显示英文标题

标题： Subradiant Bell states in distant atomic arrays

摘要： 我们研究两个相距较远的单层量子发射器阵列（作为两能级原子）的集体“自由空间”辐射特性。 我们表明，该系统可以支持一种长寿命的贝尔超位置态，表现出强烈的亚辐射特性，这对应于两个阵列的非局域激发。 我们描述了这些状态的制备及其在量子信息中的应用，作为非局域纠缠的资源，包括在代表量子存储器的阵列之间实现高保真度的确定性量子态传输。 我们讨论了使用光镊阵列中的冷原子实现实验的可能性，并分析了缺陷的作用。 显示英文摘要

摘要： We study collective `free-space' radiation properties of two distant single-layer arrays of quantum emitters as two-level atoms. We show that this system can support a long-lived Bell superposition state of atomic excitations exhibiting strong subradiance, which corresponds to a non-local excitation of the two arrays. We describe the preparation of these states and their application in quantum information as resource of non-local entanglement, including deterministic quantum state transfer with high fidelity between the arrays representing quantum memories. We discuss experimental realizations using cold atoms in optical trap arrays with subwavelength spacing, and analyze the role of imperfections.