学术动态

报告人：王国庆 助理教授（北京大学）

邀请人：李朝红 教授、庄敏 助理教授

时  间：2025年12月15日 15:00-16:00

地  点：深圳大学粤海校区光电所301报告厅

报告摘要：

The rapid advancement of quantum technologies has led to diverse applications in sensing, simulation, and computation. Central to these advancements is the development of precise and robust quantum control techniques. In this talk, I will present how innovations in the control of light-matter interaction to the control of interaction among spins—are enabling breakthroughs in quantum applications. I will introduce a few novel sensing protocols we developed to improve the performance of quantum sensors based on solid-state spins. These protocols include a quantum mixer capable of sensing arbitrary frequency signals, a hyperfine-enhanced gyroscope with up to 1000-fold sensitivity improvement, and techniques to extend spin ensemble coherence to the single-spin limit. If time permits, I will report our recent progress in leveraging strong light-matter interactions within a novel bow-tie cavity to enhance the performance of atom array quantum platforms. Key achievements include probing atom array geometry through cavity Bragg scattering and the first real-time observation of atomic collisions. These advances also pave the way for entanglement-enhanced quantum metrology and next-generation quantum technologies. By integrating these diverse aspects of quantum control, this talk will illustrate how they collectively drive innovation in quantum sensing and computation, shaping the future of the field.

报告人简介:

王国庆，北京大学物理学院量子材料科学中心助理教授，北京大学博雅青年学者，研究兴趣为基于中性原子阵列、固态自旋等前沿量子平台的量子计算、量子传感和量子模拟，以及腔量子电动力学。2018年获北京大学物理学学士学位，2023年获麻省理工学院量子科学与工程博士学位，2023-2025在麻省理工学院从事博士后研究，2025年6月起加入北京大学物理学院量子材料科学中心，担任助理教授、研究员。以第一/通讯（含共同）作者身份在PNAS、PRL、PRX等高水平期刊发表文章14篇，曾获国家优秀自费留学生奖学金、Mathworks奖学金等。