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Topological Quantum Computing Open Quantum Systems Decoherence

Universal nondiffractive topological spin textures in vortex cores of light and sound

arXiv
Authors: Elena Annenkova, Andrei Afanasev, Etienne Brasselet

Year

2025

Paper ID

16300

Status

Preprint

Abstract Read

~2 min

Abstract Words

93

Citations

N/A

Abstract

We report universal skyrmionic spin textures in the cores of optical and acoustic vortex beams, described within the framework of Laguerre-Gaussian modes. We analytically demonstrate nondiffractive propagating spin merons, independent of whether the field is transverse or longitudinal, with their sign controlled by the wavefront helicity. Experimental confirmation is provided in acoustics through full three-dimensional measurements of the velocity vector field. Although these phenomena are intrinsic to vortex cores, we also show that the claimed universality breaks down for higher-order topological charges, depending on the carrier mode, here exemplified using the Bessel framework.

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  • This paper contributes to the Topological Quantum Computing research area in the Quantum Articles archive.
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  • We report universal skyrmionic spin textures in the cores of optical and acoustic vortex beams, described within the framework of Laguerre-Gaussian modes.

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References & Citation Signals

[1] DOI https://doi.org/arXiv:2512.02964 [2] arXiv https://arxiv.org/abs/2512.02964 [3] Publisher https://arxiv.org/abs/2512.02964

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