汇报标题 (Title)：Quantum information theory and preserver problems （量子讯息论与维持问题）
汇报人 (Speaker)： 黄毅青 教授（台湾榆林大学）
汇报功夫 (Time)：2023年10月10日(周二) 14:00-17:00
汇报地址 (Place)：校本部F309会议室
约请人(Inviter)：王卿文 教授
主办部门：理学院数学系
汇报提要：As a mathematician, I will present my works on the quantum information theory via an operator algebra approach.
The story starts with the Wigner theorem on transition probability. My study on several preserver problems of function, matrix and operator algebras follow. A typical problem states that how one designs a quantum channel to send a particular group of quantum data to another group of quantum data. Here, quantum data refers to positive density matrices/operators and quantum channels refer to completely positive maps. The talk will end by a briefing of my recent works on divergence preserver problem.
