时间：4月25日14:30
地点：近代物理系108会议室
题目：experiment design for quantum state preparation and tomography
报告人: 深圳量子科学与工程研究院 李俊副研究员
摘要：this talk is to introduce some of my recent work on quantum state engineering and its applications in nmr experiments. they include:
(1) state tomography experiment design via integer programming. we apply 0-1 integer programming to the problem of searching for minimal set of readout pulses for a state tomography experiment;
(2) state tomography via variational hybrid quantum-classical method. we propose a hybrid quantum-classical version of the grape algorithm, which can solve both quantum optimal control and quantum state tomography problem;
(3) optimal experiment design for quantum state transfer. we analyze the state transfer efficiency problem for different class of quantum channels, including unitary, mixed unitary and markovian. we present a strategy of optimal experiment design, which incorporates coherent radio-frequency field control, gradient field control and phase cycling, aiming at maximizing state transfer efficiency and meanwhile minimizing the number of experiments required.
i will explain very briefly each of the above research problem and our solution method.
