A roadmap to high-energy physics with vortex particles at accelerators

by Prof. Dmitry Karlovets (ITMO University and Institute of Modern Physics)

Thursday 12 Nov 2026, 12:00 → 13:30 Asia/Shanghai

5#/6th-603 - Meeting Room 603 (Science Building)

Abstract:

Vortex electrons and photons carry orbital angular momentum (OAM), opening new possibilities for high-energy scattering, radiation, and nuclear and atomic processes. Realizing these possibilities at accelerators requires not only generating relativistic vortex particles, but also preserving their quantum states during acceleration and transport. I will discuss recent results on vortex-electron dynamics in bending magnets, including boundary effects, BMT-like OAM precession, and the growth of OAM dispersion. While simple circular motion can lead to substantial broadening over many turns, tailored magnetic lattices, including conventional rings and figure-eight configurations, suggest possible routes to suppressing this growth. As a first experimental step, I will highlight our project at the electron linac of JINR in Dubna, aimed at generating vortex electrons with controlled OAM and studying their transport through accelerator elements. Finally, I will outline prospects for experiments at free-electron lasers and in high-energy collisions involving vortex particles.

Biography:

RESEARCH PROFILE:
    QED, vortex particles, atoms, and structured light (theory and experiment). Leads theory and experiments on sources for vortex-electron accelerators at the Joint Institute for Nuclear Research (JINR), Dubna.
APPOINTMENTS AND RECOGNITION
  2026          CAS PIFI Visiting Scientist, Institute of Modern Physics. CAS President’s                         
                    International Fellowship Initiative.
                    Head of ITMO's MegaScience master's track, launched with JINR.
  2013-2016 Max Planck Institute for Nuclear Physics (MPIK), Heidelberg. Postdoc, then 
                    Alexander von Humboldt Fellow for Experienced Researchers (2014-2016).                    
                    Humboldt Return Fellowship, 2016-2017.
  2021/2008 DSc / PhD in Theoretical Physics, Tomsk State University.
RESEARCH LEADERSHIP AND EXPERIMENTS
  2023-2027 PI, RSF interdisciplinary project 23-62-10026 (Russian Science Foundation), 
                     “Source of relativistic electrons with angular momentum”, with JINR, St. 
                     Petersburg-Dubna.
  2021-2023 Russian PI, joint RSF-DFG project 21-42-04412, “Interaction of twisted light with 
                     individual atoms and atomic ensembles”, with PTB, Braunschweig, Germany.
  2017-2022 PI, RSF Presidential Programme 17-72-20013, “Quantum dynamics of beams 
                    with phases and its applications”, Tomsk - St. Petersburg

Host: Prof. Mengjiao Xiao

Alternative online link：https://meeting.tencent.com/dm/WlHULSufRnWi

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