报告题目：Weyl半金属中的三维量子Hall效应

报告人：鹿鸣 （北京量子信息科学研究院）  

报告时间：2026 年 10 月 29 日（周四）14 : 30-16 : 00

报告地点：北洋园校区 49 教 410 室

报告摘要：

The quantum Hall effect (QHE) is a remarkable phenomenon in condensed matter physics, where a two-dimensional electron gas exhibits quantized Hall conductance with extraordinary precision. Extending this effect to 3D has been a long-standing goal in the community. Recently, it has been proposed and discovered that the 3D QHE can be realized in Weyl semimetals (WSMs) under strong magnetic fields. However, most previous studies still display 2D-like features, such as quantized Hall conductance and vanishing longitudinal resistance, leaving the true 3D nature ambiguous.

In this talk, I will present our recent theoretical efforts to uncover the 3D nature of the QHE in WSMs using an unconventional in-plane measurement scheme. I will first provide a comprehensive introduction to the background—covering the QHE, WSMs, and the 3D QHE—making it highly accessible to graduate students and non-experts. Then, I will discuss our findings on the in-plane anomalous transport features of the 3D QHE in WSMs, aiming to provide valuable insights for both theoretical and experimental researchers.

报告人简介：

鹿鸣，2012年本科毕业于南京大学，2017年博士毕业于北京大学，2019-2021年在北京量子信息科学研究院进行博士后研究，之后留院任助理研究员至今。目前在Physical Review Letters、 Nature Communications、Science Bulletin、Science China等期刊共发表文章20余篇，主持国家自然科学基金两项。研究方向为凝聚态理论，目前主要聚焦于量子输运、非厄米物理和二者的交叉融合前沿。