腾讯会议ID：249-520-442

会议密码：0120

主  持  人：周毅   研究员

联  系  人：傅琦（82649469）

Abstract:
This talk presents a unified theoretical framework for entanglement distillation and quantum repeaters, forming a foundation for scalable and fault-tolerant quantum networks. I will first introduce stabilizer entanglement distillation [1], which connects entanglement distillation directly to stabilizer quantum error correction, unifying previous approaches and guiding the systematic design of improved protocols. Building on this framework, I will present a measurement-based quantum repeater architecture that relies solely on locally prepared graph states and Bell measurements [2], greatly reducing circuit complexity and resource overhead. When implemented with quantum low-density parity-check (QLDPC) codes, the repeater achieves constant-rate, fault-tolerant Bell state distribution over arbitrary distances—a key step toward scalable quantum networks.

[1] Y. Shi, A. Patil, S. Guha, PRX Quantum 6, 010339 (2025).

[2] Y. Shi, A. Patil, S. Guha, Phys. Rev. Lett. 135, 130803 (2025).

Brief CV of Dr. Yu Shi:
施宇，美国马里兰大学电子与计算机工程学院博士后。2023年在马里兰大学获得博士学位，曾在美国亚利桑那大学国家科学基金会工程研究中心—量子网络中心及马里兰大学从事博士后研究。其研究方向为量子信息理论，包括量子纠错、纠缠纯化、量子中继与量子网络。他已在Physical Review Letters、PRX Quantum、Physical Review A 等国际期刊发表多篇论文，研究致力于可扩展、容错的量子通信与计算理论。