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.

           

13^th forum（第十三期）

报告人简介

 

 

 

Han Yan (闫寒) studied quantum many-body physics in the Theory of Quantum Matter Unit, led by Prof. Nic Shannon at Okinawa Institute of Science and Technology for his PhD. After graduation, he spent three years as a Junior Fellow of Rice Academy, Rice University and also jointly as the Peter and Ruth Nicholas Postdoctoral Fellow in the final year. He then moved to the University of Tokyo as an Assistant Professor in the group of Masaki Oshikawa at the Institue of Solid-State Physics. He works on a wide variety of physics problems including spin liquids, topological & fracton orders, gauge theory, and quantum information.

 

 

 

 

Abstract, time and venue:

 

Designing Light: Emergent QED in Quantum Spin Ice and Clean Control of Its Dynamics

 

Quantum spin ice (QSI) is a lattice spin-model realization of the full-fledged quantum electrodynamics including photons, electric charges and magnetic monopoles. As one of the most interesting quantum spin liquids, a significant amount of experimental and theoretical investigation has been done in this field. I will present an overview of the quantum spin ice physics, and also discuss our recent on-going work on how in the so-called dipole-octupole QSI, one can experimentally have clean control on the dynamics of its emergent QED, including transition between different symmetry-enriched phases, tuning the dispersion of photons and fine-structure constants etc. All of this can be achieved in one of the simplest experiments — turning on the external magnetic field in the right direction.

 

Date: 2023.11.30

Time: 2:30 PM (UTC+8)

Zoom link: https://hku.zoom.us/j/93434869888?pwd=eGhyKzNHK2xvV3N5ejVwSEhBUlBwUT09

Zoom ID:  934 3486 9888 (password: 163892)