学术报告:Many-body localization and quantum many-body scars: The strong and weak form of ergodicity breaking

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报告题目:Many-body localization and quantum many-body scars: The strong and weak form of ergodicity breaking

   人:李潇 教授 (香港城市大学)

报告时间:202284 (周四)下午 1500

报告地点:beat365体育官方网站新楼五楼 D505

 

报告摘要:

The fate of an isolated quantum many-body system has attracted much attention in the past decade. One of the most important issues is whether such a system can reach thermalization under its own dynamics after a sudden quench. While thermalization is indeed expected in many cases, the opposite can happen in several different scenarios. In this talk, I will discuss our work in two systems that are known to escape thermalization. The first one is many-body localization, which is realized when strong quenched disorder is present. The other is the quantum many-body scar, which is realized in a translationally invariant system. These results will help us better understand non-equilibrium phases of matter in a closed quantum many-body system.

 

报告人简介:

Prof. Xiao Li is currently an Assistant Professor in the Department of Physics, City University of Hong Kong. He received his BSc degree from Peking University in 2008, and his Ph.D. degree in Physics from the University of Texas at Austin in 2014. Between 2015 and 2018 he worked as a postdoc associate in the Condensed Matter Theory Center, University of Maryland (College Park).

Prof. Xiao Li is mainly interested in novel states of matter that arise due to the interplay between topology, disorder, and electron-electron interactions. Recently his research focus mainly lies in various aspects of non-equilibrium systems such as many-body localization and quantum many-body scar states.

 

 

邀请人:吴冯成 教授

 


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