关键词：通信；无线电系统；量子理论；量子电子学；量子通信
摘 要：This project supported research activities for making quantum- enhanced communications and metrology practical. The strategy was to develop robust photonic quantum states and sensors serving as an archetype for loss- tolerant information acquisition beyond the standard quantum limit, as well as in finding practical sensing applications outside the laboratory for detecting objects in situations where power-limited illumination is critical.We have also been efficient in investigating fundamental issues of quantum metrology, establishing a general framework for understanding more complex scenarios, such as lossy parameter estimation, and joint measurements of multiple parameters. Investigations have fostered a novel approach which will inform our future researchers: the adoption of sensing networks in which quantum memories act as key devices.