原标题：我科学家实现超快高保真度中性原子态探测 记者6月25日从中国科学技术大学获悉，中国科学院院士、该校教授郭光灿团队在中性原子量子信 息研究领域取得重要进展。团队成员李传锋、王健研究组利用光纤微腔与中性原子的普塞尔（Purcell） 区域耦合，实现了超快高保真度的原子态读出，其速度和保真度均创造公开报道最高纪录。该成果论文 日前发表于《物理评论快报》。 研究人员认为，该成果实现了超快高保真度的原子态读出，对于减少量子计算中的时间和物理资源 消耗，以及实现长程可扩展量子网络具有重要意义。（记者吴长锋） 光纤微腔—中性原子腔量子电动力学系统示意图。受访单位供图 针对这个问题，研究组利用工作在普塞尔区域的光纤微腔—中性原子腔量子电动力学系统，在提高 光子收集效率的同时，极大增强了原子的光子辐射速率。该系统的协同因子达到4.7，原子的自发辐射 速率提升了约10倍，展现出作为高性能中性原子—光子量子接口和量子网络节点的潜能。 在此基础上，研究组利用对闭循环跃迁的强共振驱动，结合低动量转移的激发策略，将腔内读出光 子的探测计数率提升至18M/s。凭借极高的荧光亮度，他们在200纳秒的时间窗口内实现了保真度达 99.1 ...

Core Viewpoint - Cisco has developed a quantum network entanglement chip in collaboration with the University of California, Santa Barbara, aiming to enhance connectivity in the quantum era and leverage its role in internet infrastructure [2]. Group 1: Chip Features and Advantages - The entanglement chip operates at standard telecom wavelengths, allowing it to utilize existing fiber optic infrastructure for practical deployment [4]. - It functions as a micro-photonic integrated chip (PIC) at room temperature, making it suitable for scalable system deployment [4]. - The chip consumes less than 1mW of power, showcasing energy efficiency [4]. - Each output channel can produce 1 million high-fidelity entangled pairs, with a rate of up to 200 million entangled pairs per second [4]. Group 2: Strategic Directions - Cisco is building infrastructure for large-scale connectivity of quantum processors, enabling distributed quantum computing, quantum sensing, and optimization algorithms that could revolutionize drug development, materials science, and complex logistics [4]. - The principles of quantum networking are already providing direct benefits to classical systems through applications such as secure communication, precise time synchronization, decision signaling, and secure location verification [4].