报告人：刘烨超 (德国锡根大学)

时 间：2023年06月16日(周五) 下午 14:00-15:00

地 点：腾讯会议：597-793-1276 会议密码：666666

摘要：

Quantum networks are critical for many applications of quantum information processing. Unfortunately, transmission loss is inevitable for the construction of quantum networks. To address this issue, quantum repeaters have been proposed. However, current repeater protocols that rely on quantum memory are still facing challenges. Here, we introduce a new device called the entanglement buffer, which can outperform quantum memory. We have designed two caching protocols that can fill entanglement buffers with either one Bell state or a stream of Bell states. Our results demonstrate that entanglement buffers can be robust against imperfect implementations and transmission loss, making them superior to quantum memory for the quantum repeater protocol. Furthermore, larger entanglement buffers provide greater advantages, and our caching protocols are immune to time synchronization issues.

简历：

刘烨超，在北京理工大学物理学院获得学士和博士学位。之后一直在德国锡根大学从事博士后研究。他的主要研究兴趣是量子网络、量子纠缠和量子表征。

联系方式：jiangwei.shang@bit.edu.cn

邀请人： 尚江伟

网 址：http://physics.bit.edu.cn/

承办单位：物理学院、先进光电量子结构设计与测量教育部重点实验室