量子计算讨论班——Demonstrating 88Sr+ Ion-Photon Entanglement at Near-Telecom Wavelengths 

报告人：谢远衡（杜克大学）

时间：2025年4月15日，19:00-21:00

地点：海纳2幢105室

摘要：The strontium ion is a promising candidate for medium-distance quantum networking due to its atomic transition at 1092 nm. This transition could align well with pre-existing fiber optic infrastructure, depending on the specific communication mode and fiber loss characteristics. Thus, lossy photon conversion processes are unnecessary, enabling direct remote entanglement at kilometer scales. In our experimental setup, we generated 1092 nm photons and measured the coherence and correlations between the ion and photon under different bases. These findings mark an important step toward the realization of ion-photon entanglement at near-telecom wavelengths. Our research and further optimization will be crucial to fully harnessing their potential for real-world quantum communication.

报告人简介：Yuanheng Xie is a dedicated quantum physicist with a keen focus on the applications of trapped ion systems. He earned his undergraduate degree from the University of Science and Technology and completed his Ph.D. in Atomic Physics at Indiana University. Currently, he is a postdoctoral researcher at Duke University in Prof. Norbert Linke's group, where his research explores quantum simulation and quantum networking. Driven by a passion for quantum many-body physics, he aims to harness trapped ion systems as a powerful platform for quantum information processing.

联系人：刘伟华（lwh.math@zju.edu.cn）