Transmission of vortex electrons through a solenoid
arXiv:2306.13161 · doi:10.1103/PhysRevA.109.L040201
Abstract
We argue that it is generally nonstationary Laguerre-Gaussian states (NSLG) rather than the Landau ones that appropriately describe electrons with orbital angular momentum both in their dynamics at a hard-edge boundary between a solenoid and vacuum and inside the magnetic field. It is shown that the r.m.s. radius of the NSLG state oscillates in time and its period-averaged value can significantly exceed the r.m.s. radius of the Landau state, even far from the boundary. We propose to study the unconventional features of quantum dynamics inside a solenoid in several experimental scenarios with vortex electrons described by the NSLG states. Relevance for processes in scanning and transmission electron microscopes, as well as for particle accelerators with relativistic beams is emphasized.
6 pages, 2 figures
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Cited by in corpus (6)
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- Effective Caldirola-Kanai Model for Accelerating Twisted Dirac States in Nonuniform Axial Fields
- Radiation of breathing vortex electron packets in magnetic field