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报告主题:   Quantum Uncertainty Principles for Measurements with Interventions

报  告  人:   肖运龙教授

报告时间： 2023年 12月17日（星期日）下午02:30-03:30

报告地点： 37号楼3A01报告厅     

邀  请  人:   郑驻军 教授

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数学学院

2023年 12月12日

报告摘要：

  Heisenberg's uncertainty principle implies fundamental constraints on what properties of a quantum system can we simultaneously learn. However, it typically assumes that we probe these properties via measurements at a single point in time. In contrast, inferring causal dependencies in complex processes often requires interactive experimentation - multiple rounds of interventions where we adaptively probe the process with different inputs to observe how they affect outputs. Here we demonstrate universal uncertainty principles for general interactive measurements involving arbitrary rounds of interventions. As a case study, we show that they imply an uncertainty trade-off between measurements compatible with different causal dependencies.