报告人：蒋密 副教授（苏州大学物理学院）

时 间：2025年8月8日（周五）下午15:00

地 点：线下-良乡校区，理学楼B203会议室；线上-腾讯会议，会议号：956667628

摘要：

Motivated by the highest superconducting transition temperature (Tc) in multilayer cuprates, we investigated the trilayer Hubbard model by adopting the large-scale dynamical cluster quantum Monte Carlo simulations. Focusing on the systems with hole dopings within the two outer layers (OL) higher than the inner layer (IL), which is believed to be relevant to the realistic multilayer cuprates, our exploration discovered that the IL and OL manifest strong differentiation in a wide range of hole doping combinations. Specifically, the OLs remain metallic while the IL shows a distinct transition from the pseudogap to superconducting state. More importantly, the highest Tc of the composite trilayer system can be largely enhanced compared to the single layer model and the imbalanced hole dopings between IL and OL are generically beneficial for global SC. We further provide strong numerical evidence on the possibility of d-wave superconductivity solely hosted in the IL.

简历：

蒋密，2014年于美国加州大学戴维斯分校获得博士学位，2014-2020年在瑞士ETH和加拿大UBC从事博士后研究工作，2021年加入苏州大学物理科学与技术学院。研究兴趣集中在对各类强关联电子体系，如非常规超导体，重费米子材料等的理论和计算研究。近期研究方向侧重于新近发现的镍基超导体系和重费米子体系。

邀请人： 杨帆 教授

联系方式：yangfan_blg@bit.edu.cn

网 址：http://physics.bit.edu.cn/

承办单位：物理学院