学术报告报告题目：Hybrid quantum-classical computing and key distribution
报 告 人：邱道文 教授 (中山大学)
报告时间：2019年12月22日（星期日）下午15:00-16:00
报告地点：4号楼318室
邀 请 人：郑驻军 教授
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数学学院
2019年 12月20日
报告摘要：
It seems still difficult to design a large universal quantum computer and to establish quantum communication massively nowadays. Even for some special quantum computers, their cost of manufacture is also very high. So, another way is to consider how to use small size quantum computers to solve some problems with essentially faster than classical computers, and how to combine classical methods to set up essentially better communication fashions.
In this talk, I would like to some feasible methods from quantum computing models, quantum algorithms, and quantum key distribution. As an example, I would explain how to design a distributed semi-quantum algorithm for phase estimation which has a better time complexity even than the conventional quantum algorithm. The basic idea is to use distributed micro quantum computers to process respectively a small quantity of quantum states and then communicate with a given classical computer via classical channel to transport the results. Furthermore, we would mention other hybrid quantum-classical devices: quantum finite automata with classical states; semi-quantum key distribution.