2018/07/15 by M. H. M. Passos, W. F. Balthazar, J. Acácio de Barros +4
Chemistry · Computer Science · Engineering · Physics and Astronomy · #Chemistry #Engineering #Kochen–Specker theorem #Laser #Orbit (dynamics) #Orbital Angular Momentum in Optics #Physics #Polarization (electrochemistry) #Quantum #Quantum Information and Cryptography #Quantum Mechanics and Applications #Quantum electrodynamics #Quantum mechanics #Qubit #Transverse plane #quant-ph
paper · pdf · doi:10.1103/physreva.98.062116
published as Phys. Rev. A 98, 062116 (2018) · 8 pages, 4 Figures
arxiv created 2018/07/15 · openalex created_date 2018/08/03 · openalex publication_date 2018/12/26 · arxiv updated 2019/01/02 · openalex updated_date 2026/08/05
We experimentally observed the violation of Kujula--Dzhafarov noncontextuality inequalities by nonseparable spin-orbit laser modes. Qubits are encoded on polarization and transverse modes of an intense laser beam. A spin-orbit nonseparable mode was produced by means of a radial polarization converter (S plate). Our results show that the quantum contextuality can be emulated by nonseparable spin-orbit modes in an intense laser beam. Additionally, an improvement in the nonseparable mode preparation allowed us to observe a greater violation of the Clauser--Horne--Shimony--Holt inequality for such system. The results are in very good agreement with the theoretical predictions of quantum mechanics.