题目： Information in quantum imaging

报告人：Alexander Mikhalychev 研究员 (白俄罗斯国家科学院斯捷潘诺夫物理研究所)

时 间：2024年9月13号（周五）上午10：00-12：00

地 点：良乡校区，物理实验中心229会议室

摘要：

Quantum imaging is a rapidly developing field of research, exploiting quantum nature of light for increasing optical resolution and going beyond the classical Abbe limit. Detection of field correlations (photon coincidences) enhances the sensitivity of the signal to small features of the imaged object, but, generally, makes thorough and efficient interpretation of the whole bundle of the measured data more complicated. One inevitably faces a number of questions: Is there a better measure of optical resolution than visual distinguishability of the object features? What does “resolution” mean in general if the measured dataset differs from the object even in its internal structure (especially, when cross-correlations of different detection points are measured or several orders of correlation functions are analyzed together)? Can the object reconstruction procedure be performed more computationally efficient by using special information about the imaging setup? Which parameters of the measurement will yield the highest resolution (how much “quantumness” is optimal)? The talk will be devoted to treatment of the problems in terms of the information content of the collected images. Both, theoretical ideas and their applications to measured datasets will be discussed.

简历：

Alexander Mikhalychev is a senior researcher in B.I.Stepanov Institute of Physics，National academy of sciences of Belarus. He has published more than 60 papers in top journals in physics, such as Phys.Rev , npj Quantum Inf. and so on. His research covers: quantum antennas, quantum measurement and quantum imaging. He has finished projects like EU Horizon 2020 project, BRFFR-NSFC,BRFFR-ICRANet.

联系方式：shenglizhangustc@126.com

邀请人： 张胜利

网 址：/

承办单位：物理学院、先进光电量子结构设计与测量教育部重点实验室