时间：2021年8月11日（周三）下午15:00-16:30

Time：15:00-16:30 PM, Wednesday, Aug 11, 2021

地点：西湖大学云栖校区4号楼311室

Venue: Room 311, Building 4, Yunqi Campus

主持人：西湖大学理学院PI 吴颉

Host:   Jie Wu, PI of School of Science, Westlake University

主讲人/Speaker：TD Lee Professor & Deputy Director, Tsung-Dao Lee Institute; Zhiyuan Professor, Department of Physics and Astronomy, Shanghai Jiao Tong University

Professor Wei Ku received his PhD from University of Tennessee at Knoxville and conducted his Postdoctoral research in University of California at Davis. He then joined Brookhaven National Laboratory as an Assistant Physicist, and an Adjunct Professor of Stony Brook University. In 2016, he received the Chinese National Talent award and joined Shanghai Jiao Tong University as a Zhiyuan Professor.  Since 2018, he joined Tsung-Dao Lee Institute as Head of Quantum Division and later as Deputy director.  Professor Ku’s research interests include strongly correlated functional materials, unconventional superconductors, and their elementary excitations.

报告题目/Title:

Transport properties of emergent Bose liquid:  the bad, the strange, and the weak insulating, all in one system

讲座摘要/Abstract:

Transport properties are the cornerstone of solid state physics. It may come as a surprise that many modern functional materials display transport properties that are qualitatively different from the textbook description of metals or insulators.  The most puzzling ones include non-saturating resistivity at high temperature (bad metal), linear temperature dependent resistivity at low temperature (strange metal), and dramatic increase of resistivity approaching zero temperature but without an activation scale (weak insulator).  This talk will present a simple resolution to all these non-fermi liquid behaviors by replacing the most essential building block of solid state physics, namely fermionic quasi-particles as the charge carriers, by bosonic ones.  The corresponding emergent Bose liquid model displays all these behaviors, with simple and intuitive explanations.  This study suggests that a commonly encountered class of strongly correlated non-Fermi liquid materials can be understood as emergent Bose liquid, and a volume 2 of solid state textbook is needed.

讲座联系人/Contact:

科技合作部 毕老师

biguanying@westlake.edu.cn