片上高维可编程高维量子信息对称测量

发布日期:2025-11-11

报告人: 胡晓敏 教授


时间:202511131500


地点:知新楼七楼物理学院量子报告厅


主持人:逯鹤 教授


摘要:Symmetric informationally complete measurements are both important building blocks in many quantum information protocols and the seminal example of a generalised, non-orthogonal, quantum measurement. In higher-dimensional systems, these measurements become both increasingly interesting and increasingly complex to implement. Here, we demonstrate an integrated quantum photonic platform to realize such a measurement on three-level quantum systems. The device operates at the high fidelities necessary for verifying a genuine many-outcome quantum measurement, performing near-optimal quantum state discrimination, and beating the projective limit in quantum random number generation. Moreover, it is programmable and can readily implement other quantum measurements at similarly high quality. Our work paves the way for the implementation of sophisticated higher-dimensional quantum measurements that go beyond the traditional orthogonal projections.



报告人简介:胡晓敏,中国科学技术大学特任教授,主要从事量子光学、量子网络和单光子量子传感研究。创新利用偏振路径耦合等技术构建高维量子网络,实现32维纠缠态制备及11km高维纠缠分发,成果达国际先进水平。在单光子传感领域,首创氮化硅微腔多普勒测风雷达。发表SCI论文33篇(含PRL 12篇),引用2300次,成果获诺奖得主正面评价,入选2021中国通信学会重大科技进展。获国家优青资助,任Fundamental Research青年编委。