邀请人 (Invited by): 张鹏鸣

时间 (Time): 星期五，2024/3/1-10:00-11:00

地点 (Location): 珠海校区瀚林3号B331会议室

摘要 (Abstract): 

Experimental generation of photons, electrons, neutrons, and atoms with orbital angular momentum triggered the emergence of a new field at the intersection of atomic physics, electron microscopy, spin and hadron physics, quantum and neutron optics. The existing technologies for generating such states are limited to relatively low energies, which does not allow one to employ them for applied and fundamental research on the subatomic scale. I will review recent advances both in theoretical description of these states and in methods for upconverting their energies to relativistic scale, relevant for possible experiments at storage rings and particle colliders. I will draw analogies between the classical realm at accelerators and the quantum world of wave packets in phase space, and I will also show how these analogies could help accelerator engineers to modify particle sources to generate and accelerate twisted electrons up to the energies of hundreds of MeV. Finally, I will discuss how imperfect quantum measurements together with the entanglement can facilitate the generation of high-energy twisted beams of non-elementary particles such as protons, ions, nuclei, and so forth. Some of these ideas are currently being implemented at a 200-MeV linac of the Joint Institute for Nuclear Research (Dubna), which call for the collaboration of theoreticians, accelerator and detector engineers, laser physicists, and material scientists.

主讲人简介 (Speaker's CV): 

Karlovets Dmitry教授，现为俄罗斯ITMO大学物理学院领先研究员、团队负责人；2014年至2021年曾先后任职于俄罗斯托木斯克理工大学应用物理系、德国海德堡马克斯·普朗克核物理研究所等。2007年，获俄罗斯科学院颁发的青年科学家最佳研究工作金奖；2017-2023年，多次获得俄罗斯科学基金及俄罗斯科学与高等教育部的项目资助。主要研究方向为粒子物理。