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Open Quantum Systems Decoherence Quantum Chemistry

Interface-Induced Conservation of Momentum Leads to Chiral-Induced Spin Selectivity

arXiv
Authors: Clemens Vittmann, R. Kevin Kessing, James Lim, Susana F. Huelga, Martin B. Plenio

Year

2021

Paper ID

41170

Status

Preprint

Abstract Read

~2 min

Abstract Words

96

Citations

N/A

Abstract

We study the non-equilibrium dynamics of electron transmission from a straight waveguide to a helix with spin-orbit coupling. Transmission is found to be spin-selective and can lead to large spin polarizations of the itinerant electrons. The degree of spin selectivity depends on the width of the interface region, and no polarization is found for single-point couplings. We show that this is due to momentum conservation conditions arising from extended interfaces. We therefore identify interface structure and conservation of momentum as crucial ingredients for chiral-induced spin selectivity, and confirm that this mechanism is robust against static disorder.

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  • This paper contributes to the Quantum Chemistry research area in the Quantum Articles archive.
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  • We study the non-equilibrium dynamics of electron transmission from a straight waveguide to a helix with spin-orbit coupling.

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References & Citation Signals

[1] DOI https://doi.org/arXiv:2111.14770 [2] arXiv https://arxiv.org/abs/2111.14770 [3] Publisher https://arxiv.org/abs/2111.14770

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