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报告题目Controlling Topological Superconductivity in Planar Josephson JunctionsBABD

报告人任赫辰 教授

报告时间2022年4月8日(星期五)15:30-17:00

报告地点在线报告(腾讯会议ID:783-556-446)

报告摘要

Topological superconductors enjoy continuous enthusiasm from the condensed matter community thanks to their edge states-Majorana zero modes, a potential game-changer in quantum computing. For the past decade, topological superconductivity have been studied widely in one-dimensional systems, which suffer from peculiar technical challenges. In comparison, two-dimensional platforms possess the built-in advantage of device reproducibility and scalability, both necessary as viablebuilding blocks of topological quantum computers. In this talk, we shall see how planar Josephson junctions can support topological superconductivity. I will present my experimental results on HgTe quantum-well devices using both transport measurement and tunneling spectroscopy. We will also explore the prospect of phase bias as a cleaner knob to induce topological phase transition in planar Josephson junctions. The goal of this research direction is to replace the magnetic field needed in previous experiments with sheer control of superconducting phases.

报告人简介

任赫辰,天津大学理学院及量子交叉研究中心教授,曾在美国哥伦比亚大学、哈佛大学和加州理工学院攻读物理专业并从事实验凝聚态物理学研究。主要的研究领域为凝聚态物理实验和拓扑量子计算,包括在低温下研究蕴含拓扑性质的低维量子系统,发展可用于拓扑量子计算的新一代量子器件,通过发展量子输运、相位控制、以及量子隧穿等实验技术来测量和改进拓扑超导器件。


关闭窗口

天津大学理学院 量子交叉研究中心   地址:天津津南区 雅观路135号 天津大学北洋园校区32楼146 
Center for Joint Quantum Studies, School of Science, Tianjin University     Address : Yaguan Road 135, Jinnan District, 300350 Tianjin, P. R. China