Chirality-Induced Orbital-Angular-Momentum Selectivity in Electron Transmission and Scattering
Yun Chen, Oded Hod, Joel Gersten, Abraham Nitzan
TL;DR
This paper explores how chirality in materials affects the orbital angular momentum of electrons, suggesting new applications in quantum technologies.
Contribution
The study introduces chirality-induced orbital-angular-momentum selectivity in electron transmission and scattering.
Findings
Electron OAM polarization is influenced by chiral media through wavepacket propagation.
Opposite OAM wavepackets are spatially resolved after scattering from a corrugated surface.
CIOAMS could enhance mechanisms in chirality-induced spin selectivity measurements.
Abstract
Chirality-induced orbital-angular-momentum selectivity (CIOAMS) in electron transmission and scattering processes is investigated. Polarization of the OAM of an electron traversing chiral media is first studied via electronic wavepacket propagation using the time-dependent Schrödinger equation. Next, spatial resolution of wavepackets carrying opposite OAM, following scattering from a corrugated surface is demonstrated. This suggests that OAM may play a significant role in the mechanisms underlying chirality-induced spin selectivity, measured for electrons crossing chiral media in setups involving Mott polarimetry. Our results highlight the potential to exploit CIOAMS in innovative emerging quantum technologies.
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Taxonomy
TopicsOrbital Angular Momentum in Optics · Laser-Matter Interactions and Applications · Quantum optics and atomic interactions