报告题目: The Uncertainty Principle of Quantum Processes
报告人: 肖运龙 研究员(新加坡南洋理工大学)
报告时间: 2020年10月16日(星期五), 9:00-10:00
报告地点: 腾讯会议, 会议号:252456902, 密码:201016
报告摘要: Heisenberg’s uncertainty principle, which imposes intrinsic restrictions on our ability to predict the outcomes of incompatible quantum measurements to arbitrary precision, demonstrates one of the key differences between classical and quantum mechanics. The physical systems considered in the uncertainty principle are static in nature and described mathematically with a quantum state in a Hilbert space. However, many physical systems are dynamic in nature and described with the formalism of a quantum channel. Here we show that the uncertainty principle can be reformulated to include process-measurements that are performed on quantum channels. Since both quantum states and quantum measurements are themselves special cases of quantum channels, our formalism encapsulates the uncertainty principle in its utmost generality. More specifically, we obtain expressions that generalize the Maassen-Uffink uncertainty relation and the universal uncertainty relations from quantum states to quantum channels.
报告人简介: 肖运龙，南洋理工大学研究员。主要研究领域：量子信息的数学基础，不确定性关系，量子资源理论。已在《The European Physical Journal C》，《Physical Review A 》，《Physical Review D 》，《Scientific Reports》，《Journal of Physics A: Mathematical and Theoretical》，《Quantum Information Processing》，《New Journal of Physics》等发表科研论文20余篇。