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.
@article{arxiv.2507.22815,
title = {Dual-wavelength quantum skyrmions from liquid crystal topological defect},
author = {Mwezi Koni and Fazilah Nothlawala and Vagharshak Hakobyan and Isaac Nape and Etienne Brasselet and Andrew Forbes},
journal= {arXiv preprint arXiv:2507.22815},
year = {2025}
}