Manipulating twisted electron beams
arXiv:1709.00065 · doi:10.1103/PhysRevLett.119.243903
Abstract
A theoretical description of vortex electrons interacting with electric and magnetic fields is presented, based on Lorentz transformations. The general dynamical equations of motion of a twisted electron with intrinsic orbital angular momentum in an external field is derived. Methods for the extraction of an electron vortex beam with a given orbital polarization and for the manipulation of such a beam are developed.
4 pages