学术报告报告主题：Detection of network quantum steering
报 告 人：李明晓
报告时间：2024年10月2日（星期三）下午14:30-15:30
报告地点：37号楼 3A02
邀 请 人: 郑驻军 教授、 李茂生 副教授
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数学土耳其里拉兑换人民币
2024年9月29日
报告摘要：
Quantum networks promise an unprecedented leap in semi-device-independent communication and security by capitalizing on quantum steering, a unique quantum correlation. However, current methods for assessing quantum network steering are constrained to specific cases. In this study, we introduce the network-CHSH-like inequality, a novel approach for investigating network steering independent of entanglement source characteristics. We employ this inequality to detect full network steering in both single-node and multi-node repeater networks and assess the tolerance of various noise models. Under a specific noise model, our method can compute the bound of semi-device independent communication distance. Through case studies, we also demonstrate that our method, as a semi-device-independent entanglement witness, is more suitable for settings requiring Bell measurements compared to network Bell inequality. These findings open new avenues for broader methods to detect quantum steering independent of entanglement sources.
报告人介绍：
李明晓，华南理工大学数学土耳其里拉兑换人民币2022级在读博士，导师是郑驻军教授。