Spin-polarizing interferometric beam splitter for free electrons

Abstract

A spin-polarizing electron beam splitter is described which relies on an arrangement of linearly polarized laser waves of nonrelativistic intensity. An incident electron beam is first coherently scattered off a bichromatic laser field, splitting the beam into two portions, with electron spin and momentum being entangled. Afterwards, the partial beams are coherently superposed in an interferometric setup formed by standing laser waves. As a result, the outgoing electron beam is separated into its spin components along the laser magnetic field, which is shown by both analytical and numerical solutions of Pauli's equation. The proposed laser field configuration thus exerts the same effect on free electrons like an ordinary Stern-Gerlach magnet does on atoms.

5 pages, 3 figures

References in corpus (7)

• The Deuteron Spin-dependent Structure Function g1d and its First Moment
• Electron spin polarization in strong-field ionization of Xenon atoms
• The effect of wavefront aberrations in atom interferometry
• Spin dynamics in the Kapitza-Dirac effect
• Electron-spin dynamics in elliptically polarized light waves
• Hole dynamics and spin currents after ionization in strong circularly polarized laser fields
• Laser-driven relativistic tunneling from p-states