时间: 2025年1月10日（周五）下午14:00-15:30

Time: 14:00-15:30, Friday, January 10th, 2025

主持人: 西湖大学理学院PI 严正 博士

Host: Dr. Zheng Yan, PI of School of Science, Westlake University

地址：西湖大学云谷校区E10-201

Venue: E10-201, Yungu Campus, Westlake University

讲座语言：英文

Lecture Language: English

王翀

加拿大圆周率研究所教授

Prof. Chong Wang

Professor of Perimeter Institute for Theoretical Physics

主讲人/Speaker:

Chong Wang obtained his Ph.D. in Physics from M. I. T. in 2015, and was a Harvard Junior Fellow during 2015-2018. He is currently a senior faculty member at the Perimeter Institute for Theoretical Physics in Canada. Chong Wang works on exotic quantum phases of matter, especially those arising from strongly correlated many-body systems. In particular he is interested in topological phases of matter, quantum spin liquids, quantum Hall effects, quantum phase transitions and related topics in quantum field theories such as anomalies and dualities. Recently he is interested in generalizing the notions of topological phases and quantum anomaly to disordered and open quantum systems.

讲座摘要/Abstract:

Significant progress has recently been made in our understanding of quantum phases of matter in open systems. This emerging field, partly motivated by the development of modern quantum devices, lies at the crossroads of condensed matter physics and quantum information science. In this talk, I will provide an overview of the concept of "phases of matter" in many-body quantum systems, addressing both the traditional closed systems and the more recent developments in open systems. Symmetry, as in nearly all areas of physics, plays a crucial role in this discussion. After briefly reviewing how the concept of 'spontaneous symmetry breaking' differentiates phases of matter in conventional settings, I will introduce a novel form of symmetry breaking, known as "strong-to-weak spontaneous symmetry breaking”, which is an example of quantum phases unique to open quantum systems. I will then briefly discuss how the concept of "topological phases" can be generalized to open quantum systems.

讲座联系人/Contact:

理学院，程雯雯，邮箱：chengwenwen@westlake.edu.cn

School of Science, Ms Wenwen Cheng, Email: chengwenwen@westlake.edu.cn