【直播】【人大物理学系】香港大学王晨杰博士：Anomaly indicators and bulk-boundary ...
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题目：Anomaly indicators and bulk-boundary correspondences for 3D symmetry-protected topological phases
报告人：王晨杰（香港大学）
时间：2021年5月21日 12:30
主办方：中国人民大学物理学系
A d-dimensional quantum many-body system is said to carry a 't Hooft anomaly if it cannot be realized in strictly d dimensions without breaking some symmetries; instead, to respect symmetries, it must live on the boundary of a (d+1)-dimensional bulk. The connection between properties of the anomalous boundary and its bulk is famously known as bulk-boundary correspondence. In this talk, I will explore a few bulk-boundary relations between anomalous 2D topological orders (a.k.a. topological field theories) and 3D symmetry-protected topological phases. I will show that due to the fact that both boundary and bulk are topological phases, the bulk-boundary relations can be made explicit and precise, such that they can be used as a complete set of indicators to compute 't Hooft anomalies of the boundary. This talk is based on a series of works that I have done with my collaborators in the past few years.
报告人简介
王晨杰 | 香港大学
王晨杰，香港大学物理系助理教授。2007年从中国科学技术大学毕业后到美国布朗大学读研，2012年取得物理学博士学位。主要从事凝聚态理论研究，具体方向包括强关联物理系统中的拓扑物态，量子输运，非平衡态统计等。
编辑：苏苗苗
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