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arXiv · 2507.22815

Dual-wavelength quantum skyrmions from liquid crystal topological defect

Mwezi Koni·Fazilah Nothlawala·Vagharshak Hakobyan·Isaac Nape·Etienne Brasselet·Andrew Forbes
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Abstract

We propose a spin-orbit strategy for generating dual-wavelength quantum skyrmions, realized either as entangled photon pairs at dual wavelengths or as heralded single-photon states at a given wavelength -- regimes neither previously conceptualized nor demonstrated. By coupling a two-photon entangled state to an electrically tunable liquid crystal topological defect, we engineer both nonlocal and local skyrmionic topologies in a reconfigurable platform. We highlight with examples how this approach may open new directions for engineered topological quantum states that exploit the topological richness of liquid crystals.

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Mwezi Koni, Fazilah Nothlawala, Vagharshak Hakobyan, Isaac Nape, Etienne Brasselet, Andrew Forbes. 2025-07-30. Dual-wavelength quantum skyrmions from liquid crystal topological defect. https://arxiv.org/abs/2507.22815

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