物理学院“博约学术论坛”系列报告第 142 期 (2018年第 4期)
题目:Towards a full quantum network: quantum frequency converters based on erbium doped crystals
报告人:陈宇辉博士(新西兰奥塔哥大学)
时 间:2018年3月2日(星期五)下午2点
地 点:中教楼610会议室
报告摘要:
Abstract: Diverse systems, such as atoms, photons, and macroscopic superconducting qubits, have shown their own advantages in building parts of a full quantum network. To combine the best features of those sub-systems that work exclusively either in microwave frequencies or optical frequencies, we proposed a quantum converter between microwave photons and optical photons by coupling an erbium doped crystal to both a microwave and optical cavity. Unit efficiency conversion can be achieved so long as the product of the optical and microwave cooperativity factors can be made large. An efficiency of photon number conversion of 10^-5 is demostrated in our experiment. We will also discuss our recent progress in building a quantum memory using erbium doped crystals.
简历:
陈宇辉博士,2008年获中山大学理学学士,2013年获中科院物理研究所光学博士,主要研究方向为纳米光子学。2013年6月至2018年2月在新西兰奥塔哥大学从事博士后研究以及任Research Fellow。主要研究方向为稀土元素掺杂的晶体材料在量子信息领域中的应用。主要工作成果包括:首次将全息技术引入到plasmionic结构的设计中;提出一种实现微波波段和光学波段光子之间的量子转换的方法。已在包括Light Sci. Appl., Phys. Rew. Lett., Nano Lett. 和Small等杂志上发表研究论文19篇,被引600余次。
联系方式:物理学院办公室 (68913163)
邀请人: 张向东 教授
网 址:http://physics.bit.edu.cn/