香港大学-中国科学院大学 青年物理学者论坛

HKU-UCAS young physicist forum

 

本论坛由香港大学-中国科学院大学理论与计算物理联合研究所香港和北京分部共同承办。旨在促进青年物理学者互相的交流和讨论。不同于寻常的短平快形式的科学报告，我们主要集中于更为系统、全方位、由浅入深地讲解当前物理的各个前沿方向。报告人主要是目前活跃于科研一线的年轻学者。

 

This forum is hosted by the HKU-UCAS Joint Institute of Theoretical and Computational Physics at Hong Kong and Beijing. It aims to promote interchanges and discussions among young physicists. Different from ordinary scientific reports in the short, simple and quick form, we mainly focus on explaining and introducing various frontier directions of current physics in a more systematic, all-round way and from the shallower to the deeper. The speakers are mainly young scholars who are currently active in the front line of scientific research.

           

1^st forum（第一期）

报告人简介

 

 

 

陈斌斌，2015年于北京航空航天大学（北航）物理学院获得理学学士学位，2021年于北航物理学院获得理学博士学位，现于香港大学物理系开展博士后研究。主要研究领域是凝聚态物理中的强关联量子多体方法。一直致力于发展有限温度张量重正化群方法，并将其应用到量子多体系统的热力学性质计算中。近年研究兴趣集中在费米Hubbard模型、魔转角石墨烯等多体费米子系统的研究中。

 

Bin-Bin Chen, got his PhD’s degree in Beihang University in 2021, and he is now working as a Postdoctoral Fellow in the University of Hong Kong. His research interest focuses on the efficient numerical simulations of quantum many-body systems, including both spin and fermion systems. Working on the tensor network state, an efficient wave-function ansatz, he has proposed several finite-temperature algorithms, in order to accurately simulate strongly correlated systems and calculate the thermodynamic properties down to low temperature.

 

 

报告内容、时间和地点：Zoom会议（https://hku.zoom.us/j/4505499841）

 

1. 有限温度张量网络算法 (10.19, 9am-12pm CYP522, HKU) [slide]

1.1 级数展开热张量网络算法

1.2 指数张量重正化群算法

1.3 可微张量重正化群算法

2. 费米子多体系统的张量网络研究 (11.02, 2pm-6pm, online) [slide]

2.1 掺杂正方晶格Hubbard模型的有限温度性质

2.2 三角晶格Hubbard模型中的手征自旋液体

2.3 TBG 实空间模型中的拓扑莫特绝缘体

2.4 TBG 实空间模型中的激子激发

3. 量子多体纠缠与无序算符 (11.09, 2pm-6pm, online) [slide]

3.1 有限温度纠缠谱

3.2拓扑无序算符

3.3 费米子无序算符

 

Talk outline, time and venue: Zoom Meeting（https://hku.zoom.us/j/4505499841）

 

1.    Finite-temperature tensor network methods (Oct 19, 9am-12pm CYP522, HKU) [slide]

1.1Series-expansion thermal tensor network

1.2Exponential tensor renormalization group

1.3Differentiable tensor renormalization group

2.    Tensor network studies of fermionic manybody systems (Nov 2nd, 2pm-4pm, online) [slide]

2.1Finite-T properties of doped square-lattice Hubbard model

2.2Chiral spin liquid in triangular-lattice Hubbard model

2.3Topological Mott insulator in TBG real-space effective model

2.4Exciton excitation in TBG real-space effective model

3.    Quantum many-body entanglement and disorder operator (Nov 9th, 2pm-4pm, online) [slide]

3.1Finte-T entanglement spectrum

3.2Topological disorder operator

3.3Fermionic disorder operator