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摘要：Quantum metrology, leveraging quantum resources and manipulation techniques, offers measurement capabilities that surpass the limits of its classical counterpart. It holds the promise of driving key breakthroughs in both fundamental scientific research and practical engineering applications. Consequently, it has emerged as one of the three primary pillars of quantum information technology. Over the past two decades, this field has witnessed remarkable progress, with successful implementations across various physical systems, including photons, atoms, ions, nitrogen-vacancy (NV) centers, and nuclear magnetic resonance (NMR). Among these, photonic systems serve as a crucial platform for quantum precision measurement due to their inherent advantages, such as long coherence time and strong resistance to environmental disturbance. Furthermore, the rich and easily manipulable degrees of freedom of photons make them highly adaptable to a wide range of precision measurement scenarios. The further advancement of photonic quantum metrology relies on the development of technologies for preparing and detecting quantum probe states, the enhancement of system robustness (i.e., improved noise tolerance), and the exploration of novel measurement methodologies tailored for increasingly complex tasks. This presentation will briefly introduce the fundamental principles of photonic quantum metrology, followed by an overview of our recent research progress in quantum interferometry, weak measurement, and multi-parameter quantum precision measurement.
个人简介：Lijian received his B.S. and M. Eng. degrees at Peking University, China. He then moved to University of Oxford in UK and received his D.Phil degree in Atomic and Laser Physics. After the graduation he stayed at University of Oxford as a postdoctoral research assistant. In 2011 he joined the Max-Planck Institute for Structures and Dynamics of Matter in Hamburg as a Humboldt research fellow. Since 2013 he has been a professor at Nanjing University in China. His research interests include the generation, manipulation and detection of non-classical states of light, and their applications in communication, metrology, computation and simulation. He has published over 60 papers in international refereed journals including Science, Nature Photonics, Nature Materials, Physical Review Letters etc.