Non-Abelian Gauge Field Optics

报告人及单位：张若洋（香港科技大学 物理系）

报告题目：Non-Abelian Gauge Field Optics

报告时间：2019年1月2日（周三）14:30-15:30

报告地点：物理楼LE523

邀请人：  韩德专

报告内容简介：The concept of gauge field is a cornerstone of modern physics and the synthetic gauge field has emerged as a new way to manipulate particles in many disciplines. In optics, several schemes have been proposed to realize synthetic gauge fields, but most are limited to the Abelian type. In this talk, we introduce a new platform for realizing synthetic SU(2) non-Abelian gauge fields acting on two dimensional optical waves in a wide class of anisotropic materials and discover new phenomena. We show that a virtual non-Abelian Lorentz force arising from the material anisotropy can induce light beams to travel along wavy “Zitterbewegung” trajectories even in homogeneous media. Our scheme suggests a fresh angle to understand the dynamic effects of light in anisotropic materials, and also offers a new route to study SU(2) gauge field related physics using optics.

报告人简介：张若洋, 2010年本科毕业于南开大学物理学院， 2016年博士毕业于南开大学陈省身数学研究所理论物理研究室， 随后在香港科技大学物理系开展博士后研究工作至今。 目前已在发表SCI论文14篇。 主要研究方向为光学系统中的拓扑和几何效应, 光的自旋轨道耦合, 变换光学等。