香蕉视频

报告题目：Vortex states: a new tool for atomic, nuclear, and particle physics

报告嘉宾：Igor Ivanov，中山大学 教授

报告时间：2026年6月14日 14:30

报告地点：香蕉视频 中心校区物理楼323会议室

主持人：王海军

报告摘要

　　Collisions of photons and electrons with atoms, nuclei, and elementary particles is our main tool to explore their structure and dynamics. In almost all situations, the probe photons and electrons are described as plane waves. However, experimenters can now prepare photons and electrons as vortex states, that is, freely propagating wave packets with helical wave fronts. A vortex photon or electron, in addition to its spin, carries a nonzero orbital angular momentum (OAM) projection on its propagation direction. This is a totally new quantum number, which has never been exploited in experimental subatomic physics. Making full use of the initial-state OAM may lead to revolutions in electron microscopy, experimental nuclear and hadronic physics. In this lecture, I will give an overview of the main ideas in vortex state scattering, review the experimental progress, and illustrate the promises of vortex states in nuclear and particle physics with several recent proposals. Research opportunities at SYSU within this interdisciplinary topic will also be outlined.

嘉宾简介

　　Prof. Igor Ivanov graduated from Novosibirsk State University (Russia) and got his PhD from Bonn University (Germany). After several postdoctoral and research positions in Europe, he joined in 2021 Sun Yat-sen University as Professor at the School of Physics and Astronomy, Zhuhai. He is an expert in theoretical high-energy physics, specializing in multi-Higgs models beyond the Standard Model and applications of vortex states in particle physics. In addition to research, he is passionate about teaching physics at all levels and has over 20 years of experience in physics outreach.

举办单位：

香蕉视频

香蕉视频 理论物理中心