报告题目：Quantum manipulations in cavity and waveguide QED

报告时间：2026年9月24日（周四）15:30

报告地点：鼓楼校区唐仲英楼 B501

报  告 人：吕新友教授（华中科技大学）

摘      要：In this presentation, I will introduce our recent works in the fields of cavity and waveguide quantum electrodynamics (QED). On the one hand, in the field of cavity QED, we proposed a new method for realizing the steady-state single-photon source with near-ideal purity and near-unity brightness. It overcomes this long-standing limitation in photon-blockade-based single-photon sources and has practical potential applications in designing single-photon devices. Moreover, by employing the Exceptional points (EPs) enhancing quantum coherence, we propose to achieve superradiant lasing with an ultranarrow linewidth reaching the µHz scale. This work extends the realm of superradiant lasing by introducing EP property and offers a novel approach to improving the stability and accuracy of atomic clocks. On the other hand, in the field of waveguide QED, we investigated the disorder induced intriguing quantum effects, including the strong photon antibunching and the exponential scaling of subradiant decay rates. Our work not only resolves the critical role of disorder in modifying photon statistics and collective emission but also bridges the gap between radiative phenomena and disorder-induced localization physics.

报告人简介：吕新友，华中科技大学物理学院教授，博士生导师，国家自然科学基金“杰出青年基金”、“优秀青年基金”和湖北省“百人计划”获得者。主要从事量子物理与量子信息领域，尤其是腔量子电动力学（QED）等方面的理论研究。

主办：南京大学物理学院、江苏省物理学会、江苏省物理科学研究中心

 联系人：雷群利老师，lql@nju.edu.cn