报告题目：Hierarchical incompatibility measures in multi-parameter quantum estimation
报告摘要：The incompatibility of the optimal measurements for the estimation of different parameters constraints the achievable precisions in multi-parameter quantum estimation. Understanding the tradeoff induced by such compatibility is thus a central topic in quantum metrology. Here we provide an approach to study the incompatibility of general p-local measurement in multi-parameter quantum estimation, which are the measurements performed collectively on at most p copies of quantum states. We demonstrate the power of the approach by present a hierarchy of analytical bounds on the tradeoff relations induced by the incompatibility.
报告人简介：Haidong Yuan received his B.E. in Electronic Engineering from Tsinghua University, Beijing, China, He received his M.A. in Engineering science and Ph.D. in Applied Mathematics from Harvard University. He did his postdoctoral work at Harvard University and Massachusetts Institute of Technology. From 2012 to 2014 he was an assistant professor at the department of Applied Mathematics, the Hong Kong Polytechnic University. He is with the department of Mechanical and Automation Engineering, the Chinese University of Hong Kong since Sep 2014. His current research interests include quantum control, quantum metrology and quantum computation.