学术报告报告主题: Quantum k-uniform mixed states and orthogonal arrays
报 告 人: 庞善起教授
报告时间：2025年5月27日（星期二）上午11:00-12：00
报告地点：清清文理楼3A01
邀 请 人: 郑驻军 教授
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数学学院
2025年5月22日
报告摘要：
Quantum k-uniform mixed states are a significant class of states characterized by all k-party reduced states being maximally mixed. The purity and construction of such states are an important open issue. We establish a connection between k-uniform mixed states and orthogonal arrays with orthogonal partition. Based on the connection, several new methods for constructing k-uniform mixed states both in homogeneous and heterogeneous systems are presented. As an application of these methods, a lot of k-uniform mixed states including those with the highest possible purity are obtained.