Quantum correlated probes have the potential of delivering enhanced precision in estimating individual parameters. Obtaining quantum enhancements in scenarios of wider appeal such as imaging require an understanding of the quantum limits of estimating several parameters across multiple modes simultaneously. The problem is made theoretically and well as practically interesting and non-trivial by the possible non-commutativity of the optimal measurements needed to attain the quantum limits for estimating individual parameters. We present developments on the quantum theory of estimating multiple parameters -- arising from both unitary dynamics as well as decoherence -- simultaneously in a few scenarios, and its ramifications in the imaging of real-world samples. Time permitting, I will discuss some of our recent results on the possible role of weak measurements in quantum enhanced sensing. 3. Real-time detection and analysis of whispering gallery mode resonances in fast flowing and steady monodisperse microdroplets .

邀请人、联系人：金贤敏Xianmin.Jin@sjtu.edu.cn