Experimental Test of Quantum Nonlocality from Contextuality

• DOI: 10.48550/arxiv.2402.19149
• Publication Date: 2024-02-29
• Authors: Jianqi Sheng; Dongkai Zhang; Lixiang Chen
• Keywords: Kochen–Specker theorem

There are two powerful arguments against the possibility of extending quantum mechanics, violation Bell inequalities and Kochen-Specker theorem, but connection between remains confused. Following distinctive strategy proposed by Cabello [Phys. Rev. Lett. 127, 070401 (2021)], can be violated state-independent contextuality sets. However, experimental realization such ideas is challenging as it requires high-dimensional entanglement. Orbital angular momentum provides an unlimited state space number effective dimensions readily tailored required. We performed test non-locality based on from contextuality, using orbital entanglement in a bipartite photonic system. Our experiment not only shows new way to produce also connects non-locality, fundamental resources that critical for computation secure communication tasks.