发表机构
Nokia Bell Labs; University of Geneva（诺基亚贝尔实验室; 日内瓦大学）
机构由 AI 辅助整理，请以论文原文为准。AI 中文总结
本研究提出将薄膜钽酸锂纳米光子电路与掺镱硅酸钇晶体混合集成，以实现基于原子频率梳的量子存储器，为长距离量子网络提供可扩展的器件架构。
AI 中文摘要
可扩展光子电路对于实现超越原理验证演示的实际量子网络至关重要。尽管在过去二十年中，基于金刚石的集成光子学已被广泛研究用于量子网络应用，但其集成到可扩展光子平台中仍具有挑战性。基于稀土离子原子频率梳（AFC）的量子存储器提供了一种有吸引力的替代方案；然而，迄今为止，大多数演示依赖于体块自由空间晶体，限制了其在实际实现中的可扩展性。在这项工作中，我们系统地研究了将基于AFC的量子存储器与可扩展集成光子平台进行混合集成的潜力。我们提出了一种器件架构，将薄膜钽酸锂（TFLT）纳米光子电路与掺镱硅酸钇（Yb:YSO）晶体相结合，用于长距离量子通信。我们的分析表明，混合TFLT-YSO平台为集成量子存储器以及最终实现大规模量子网络提供了一条有前景且可扩展的途径。
英文摘要
Scalable photonic circuits are essential for realizing practical quantum networks beyond proof-of-principle demonstrations. Although diamond-based integrated photonics has been extensively investigated over the past two decades for quantum networking applications, its integration into scalable photonic platforms remains challenging. Quantum memories based on rare-earth-ion atomic frequency combs (AFCs) offer an attractive alternative; however, most demonstrations to date have relied on bulk free-space crystals, limiting their scalability for practical implementations. In this work, we systematically investigate the potential for hybrid integration of AFC-based quantum memories with a scalable integrated photonic platform. We propose a device architecture combining thin-film lithium tantalate (TFLT) nanophotonic circuits with ytterbium-doped yttrium orthosilicate (Yb:YSO) crystals for long-distance quantum communication. Our analysis shows that the hybrid TFLT-YSO platform offers a promising and scalable pathway toward integrated quantum memories and, ultimately, large-scale quantum networks.
Comments20 pages, 6 figures
