学术报告（2025年11月26日14:30）： Recent advances in non-Hermitian physics: new frontiers and challenges

主 持 人：叶鹏 教授

报告摘要: Non-Hermitian phenomena such as the non-Hermitian skin effect (NHSE) and exceptional point sensitivity have no Hermitian analogs, and have lately reshaped the way we understand band structures and topology. In this talk, I shall introduce some new ideas that extend the current repertoire of novel non-Hermitian phenomena, such as system-size dependent generalized Brillouin zones (GBZs), as well as GBZs that are fragmented or spatially nonconstant. I shall also highlight how the NHSE can interplay with the geometric defectiveness of exceptional points to lead to novel exceptional bound bands with super volume-law negative entanglement scaling. Finally, I will also review how non-Hermitian processes have been recently simulated in unitary quantum simulators.

个人简历: Prof Ching Hua Lee obtained a PhD from Stanford University under the tutelage of Prof Xiaoliang Qi. He joined the National University of Singapore in 2020, and is now heading a team focusing on exploring novel non-Hermitian phenomena, as well as their simulation on classical and quantum circuits. Prof Lee publishes regularly in top scientific journals, with more than 20 publications in Physical Review Letters, Nature Physics, Nature Communications and Science Bulletin since 2020. Prof Lee is listed under Stanford's World's top 2% scientists, being cited over 10000 times in the last 5 years.