集成冷原子系统 Integrated Cold Atom Systems

冷原子系统在量子计算与量子精密测量等领域展现出重要的应用潜力，然而传统实验装置通常体积庞大、结构复杂，限制了其可扩展性和实用化进程。推动冷原子平台的集成化与小尺寸化，是实现其从实验室走向实际应用的核心挑战之一。

我们组致力于开展集成式冷原子量子平台的初步探索，重点发展面向芯片冷原子体系的关键组件，如可见光调制器、芯片集成光路等，并系统研究磁光阱（MOT）、光镊等核心功能模块的芯片化集成方案。最终目标是构建一套高度紧凑、可扩展的冷原子系统架构，为未来小型化量子精密测量设备、高集成度量子计算平台等应用提供硬件基础。

Cold atom systems show significant potential in fields such as quantum computing and quantum precision measurement. However, conventional experimental setups are often large in size and complex in structure, which limits their scalability and practical application. Promoting the integration and miniaturization of cold atom platforms is one of the key challenges in transitioning this technology from the laboratory to real-world use.

Our research group is committed to conducting preliminary explorations into integrated cold atom quantum platforms. We focus on developing key components for chip-based cold atom systems, such as visible light modulators and chip-integrated optical paths. We also systematically investigate chip-level integration schemes for core functional modules including magneto-optical traps (MOT) and optical tweezers. The ultimate goal is to construct a highly compact and scalable cold atom system architecture that can serve as a hardware foundation for future applications such as miniaturized quantum precision measurement devices and highly integrated quantum computing platforms.

镱原子光镊阵列 Ytterbium Rydberg Atom Optical Tweezer Arrays

里德堡原子光镊阵列结合了冷原子体系的量子相干性与光镊阵列的可扩展性优势，自2016年首次实验实现以来发展迅速。目前，研究人员已成功制备了包含6100个原子的大规模阵列，并实现了保真度达99.7%的双量子比特门。

我们的研究聚焦于镱原子光镊阵列实验体系。镱原子最外层具有两个价电子，属于类碱土金属元素。与碱金属原子相比，类碱土金属原子具有独特的能级结构（如长寿命核自旋态、亚稳态等），可实现更高保真度的里德堡量子门和更高效的量子纠错方案，有望显著降低通用量子计算所需的时间和空间资源。我们致力于发掘镱原子丰富的能级结构，创新量子信息编码与量子比特操控方法，推动该体系在量子模拟、量子计算和量子精密测量等领域的重要应用。

The Rydberg atom optical tweezer array combines the advantages of cold atomic quantum coherence and the scalability of optical tweezer arrays. Since its first experimental realization in 2016, this platform has undergone rapid development. Researchers have successfully created arrays containing up to 6,100 atoms and achieved two-qubit gates with a fidelity of 99.7%.

Our work focuses on the experimental system of ytterbium atom optical tweezer arrays. Ytterbium atoms possess two valence electrons in their outermost shell and belong to the alkaline-earth-like elements. Compared to alkali metal atoms, alkaline-earth-like elements exhibit unique energy level structures—such as long-lived nuclear spin states and metastable states—which enable higher-fidelity Rydberg quantum gates and more efficient quantum error correction protocols. These features are expected to significantly reduce the temporal and spatial resources required for universal quantum computation.

Leveraging the rich energy level structure of ytterbium atoms, we aim to innovate quantum information encoding and qubit control methods, and advance important applications of this system in quantum simulation, quantum computation, and quantum precision measuremen