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.

           

4^th forum（第四期）

报告人简介

 

 

 

李萌远，2019年本科毕业于中山大学，2019年至今于中山大学就读博士研究生。研究兴趣主要集中在分形子拓扑序以及拓扑序和量子信息的关联方面。

 

Meng-Yuan Li received his undergraduate degree from Sun Yat-sen University (SYSU) in 2019, and he has been studying as a graduate student in SYSU since 2019. His current research interest is about fracton topological order and the interplay between topological orders and quantum information.

 

 

 

 

周成康，香港大学在读博士研究生，其研究兴趣是量子多体系统的理论和数值研究，包括量子磁学、具有分形序的拓扑系统，以及开发量子蒙特卡罗 复杂量子自旋系统中的算法。 通过应用大规模量子蒙特卡罗模拟和SAC方法，他研究了量子自旋系统中的各种新现象，包括具有第一类分形子序的X立方体模型中的次维激发及其光谱，以及 受子系统对称性保护的二维集群模型。

 

Zhou Chengkang has been studying as a graduate student in the university of Hong Kong since 2019. His research interests are the theoretical and numerical investigation of quantum many-body systems, including quantum magnetism, topological systems with fracton order, and developing the Quantum Monte Carlo algorithm in the complex quantum spin systems. Via applying the large-scale quantum Monte Carlo simulation and the SAC method, he investigated various novel phenomenon in quantum spin systems, including subdimensional excitations and their spectrum in the X-cube model with the type-I fracton orders, and the topological phase in 2D cluster model protected by the subsystem symmetry.

 

 

 

 

报告内容、时间和地点：

 

1. 分形子拓扑序的格点模型 (1.9, 2:30pm, 腾讯会议：539-680-821, 密码：123456) [slide]

1.1 拓扑序与toric code模型

1.2 分形子（拓扑）序与X-cube模型

1.3 第一类分形子序的叶状结构理论

2. 分形子拓扑序的蒙特卡洛模拟 (1.12, 2:30pm, 腾讯会议：200-714-003, 密码：123456) [slide]

2.1 子维度激发

2.2 蒙特卡洛模拟及量子退火算法

2.3 子维度激发的是空间关联函数及谱函数

 

 

Talk outline, time and venue:

 

1.    Lattice models of fraction topological orders  (1.9, 2:30pm, Tencent Meeting: 539-680-821, Password：123456) [slide]

      1.1 Topological orders and toric code model

1.2 Fracton (topological) orders and X-cube model

1.3 Foliated fracton order theory of Type-I fracton orders

2.    Monte Carlo simulation of fracton topological order model (1.12, 2:30pm, Tencent Meeting: 200-714-003, Password：123456) [slide]

2.1 Subdimensional excitation in X-cube model

2.2 Quantum Monte Carlo simulation and quantum annealing algorithms

2.3 Real space correlation function and spectrum function of subdimensional excitation