Dual-Wavelength Quantum Skyrmions from Liquid Crystal Topological Defects
Phys. Rev. Lett. 135, 223804 – Published 26 November, 2025
DOI: https://doi.org/10.1103/xm7z-bnpl
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.
