Relativistic electron vortex beams in a constant magnetic field
Abstract
We present solutions for the Dirac equation in the form of Bessel or Laguerre-Gaussian beams for, respectively, a free electron or an electron subject to a longitudinal constant magnetic field. We calculate the probability and the current distributions and find a strong dependence on the spin angular momentum and the orbital angular momentum of the relativistic electron beam. The role of the intrinsic spin-orbital coupling is investigated.
- Publication:
-
Physical Review A
- Pub Date:
- June 2017
- DOI:
- 10.1103/PhysRevA.95.063812
- Bibcode:
- 2017PhRvA..95f3812R