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【直播】【复旦理论物理报告会】中山大学叶鹏教授：Compatible braidings, topological...
本次报告由复旦大学物理系主办，于2021年6月4日9:30开始，授权蔻享学术进行网络直播。
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Compatible braidings, topological orders, and TQFTs in higher dimensions
报告人
叶鹏 教授（中山大学）
时间
2021年6月4日 9:30
Braiding statistics among topological excitations can be used to characterize topological orders. A natual language of braiding statistics is Topological Quantum Field Theory (TQFT). In this talk, I will discuss braiding statistics in 3+1 dimensions. We introduce three classes of "root braidings" and discuss in what sense their combinations lead to legitimate topological orders. Such "compatibility" among different braiding processes is essentially related to gauge invariance of TQFTs. By counting sets of compatible braidings, we end up with all topological orders with a given gauge group, some of which are beyond Dijkgraaf-Witten models. If time is allowed, I will also introduce results in 4+1D.
报告人介绍
图 | 叶鹏
In 2007, Peng Ye obtained B.S. in Physics in Sun Yat-sen University. In 2012, he obtained PhD in Physics in the Institute for Advanced Study, Tsinghua University. From 2012 to 2015, he work as a postdoctoral researcher in the Perimeter Institute for Theoretical Physics, Canada. From 2015 to 2018, he worked as a postdoctoral research associate (Gordon & Betty Moore Fellow) in the Department of Physics in University of Illinois at Urbana-Champaign, U.S.A.. In 2018, he moved back to School of Physics of Sun Yat-sen University as a professor of physics, and is currently leading a research group of condensed-matter theory, especially focusing on strongly-correlated topological phases of matter.
编辑：黄琦
复旦大学物理系理论物理报告会
复旦理论物理报告会，每周五上午9:30举行，报告时间为一到两个小时。报告会旨在加强国内外理论物理前沿研究进展的互动，着重凝聚态物理、量子信息和原子分子光学等学科中重要的理论物理方面的最新进展和发展方向。通过加强交流，促进不同物理学科的交叉互通， 启发新的研究角度和新科学思想。提高研究生对前沿理论物理研究动向的敏感度和思考新物理问题尤其是交叉学科问题的积极性。
专栏链接：
https://www.koushare.com/category/singledep/179
编辑：黄琦
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