Title of the talk: Novel correlation effects in two-dimensional electron gas 

Abstract: In this talk, I will introduce some of our recent work on the novel correlation effects in two-dimensional electron gas (2DEG). I will cover three main topics. The first one is novel electronic phases in the quantum Hall regime, where the interplay between electron interactions and a strong magnetic field yields interesting ground states. The second one is the Berry phase effects in 2DEG, where a semiclassical theory provides an excellent description of many transport properties of 2DEG. The last one is about twisted bilayer graphene, where a flat band strongly enhances the effect of interactions, making it possible to study novel quantum phases that are otherwise difficult to realize experimentally.

[Speaker biography]

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 at 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 mainly focused on various aspects of non-equilibrium dynamics, such as many-body localization, quantum many-body scar states, and quantum chaos.