Dual-Wavelength Quantum Skyrmions from Liquid Crystal Topological Defects

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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.
Funding Information
  • Université de Bordeaux
  • Centre National de la Recherche Scientifique
  • South African Quantum Technology Initiative
  • Wits collaboration fund

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