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This paper advances fundamental quantum physics by redefining chirality-induced spin selectivity as a conditioned measurement of spin-vector correlations in photoionization. By quantifying the enantio-sensitive locking between molecular structure and electron current, it offers a rigorous theoretical framework for manipulating spin states at the atomic scale. Such insights are critical for developing next-generation quantum sensors and potentially bridging chemical chirality with electronic transport mechanisms.

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Spin-current correlations in photoionization of chiral molecules

arXivJuly 21, 20261 min read

arXiv:2505.23460v5 Announce Type: replace Abstract: Chirality-induced spin selectivity (CISS) refers to phenomena where molecular chirality governs spin polarization. While symmetry simply requires chiral molecules to support spin-vector correlations, we show that CISS is fundamentally a conditioned measurement of these correlations. We illustrate this principle for spin-resolved one-photon ionization of a randomly oriented ensemble of chiral molecules. We introduce and quantify the phenomenon of enantio-sensitive locking of the photoelectron current to its spin, thereby providing a complete description of spin-conditioned photoelectron currents in one-photon ionization.

Abstract:Chirality-induced spin selectivity (CISS) refers to phenomena where molecular chirality governs spin polarization. While symmetry simply requires chiral molecules to support spin-vector correlations, we show that CISS is fundamentally a conditioned measurement of these correlations. We illustrate this principle for spin-resolved one-photon ionization of a randomly oriented ensemble of chiral molecules. We introduce and quantify the phenomenon of enantio-sensitive locking of the photoelectron current to its spin, thereby providing a complete description of spin-conditioned photoelectron currents in one-photon ionization.

Quantum Physics (quant-ph); Atomic and Molecular Clusters (physics.atm-clus); Atomic Physics (physics.atom-ph); Chemical Physics (physics.chem-ph); Optics (physics.optics)

arXiv:2505.23460 [quant-ph]

(or arXiv:2505.23460v5 [quant-ph] for this version)

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