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关于12月27日(周五)翁征宇学术报告的通知(Physics Department Colloquium)

编辑:phyjd 时间:2019年12月23日 访问次数:97

题目:Novel signstructure of doped Mott insulators and its emergent physical consequences inthe cuprate

报告人:翁征宇清华大学高等研究院

地点:教十二―201

时间: 1227日,周五,15:30-17:30

摘要

How tomathematically characterize strongly correlated many-body electrons is one ofthe most challenging issues of condensed matter physics. Doped Mott insulatoris a typical strongly correlated electron system which may also be responsiblefor the high-Tc superconductivity in the cuprate. I will first discuss a neworganizing principle for the doped Mott insulator based on a novel non-Fermisign structure of the t-J model and its key many-body quantum mechanicsconsequences in comparison with numerical experiments, including the exactdiagonalization and density matrix renormalization group results.In the second part of talk, I will discussthe Fermi arc, two-gap structure, quasiparticle weights in nodal and antinodalregimes, peak-hump-dip in EDC and their doping dependence observed by the ARPESexperiment in the high-Tc cuprate as the emergent pseudogap phenomenon due tothe hidden sign structure.

个人简介

翁征宇,清华大学教授。1987年于中国科大获博士学位。在德州超导中心任研究职位多年。2001年加入清华大学高等研究院。现在主要研究兴趣与方向:凝聚态理论尤其是强关联物理的研究,量子多体系统的emergent物理现象研究与高温超导机理探索。

欢迎老师和同学参加!