Experimental Test of Quantum Nonlocality from Contextuality
- URL: http://arxiv.org/abs/2402.19149v1
- Date: Thu, 29 Feb 2024 13:31:41 GMT
- Title: Experimental Test of Quantum Nonlocality from Contextuality
- Authors: Jianqi Sheng, Dongkai Zhang, Lixiang Chen
- Abstract summary: Bell inequalities can be violated by state-independent contextuality sets.
We show a new way to produce non-locality using orbital angular momentum entanglement in a bipartite photonic system.
- Score: 1.6114012813668932
- License: http://arxiv.org/licenses/nonexclusive-distrib/1.0/
- Abstract: There are two powerful arguments against the possibility of extending quantum
mechanics, the violation of Bell inequalities and the Kochen-Specker theorem,
but the connection between the two remains confused. Following the distinctive
strategy proposed by Cabello [Phys. Rev. Lett. 127, 070401 (2021)], Bell
inequalities can be violated by state-independent contextuality sets. However,
the experimental realization of such ideas is challenging as it requires
high-dimensional entanglement. Orbital angular momentum provides an unlimited
state space and the number of effective dimensions can be readily tailored as
required. We performed an experimental test of non-locality based on Bell
inequalities from contextuality, using orbital angular momentum entanglement in
a bipartite photonic system. Our experiment not only shows a new way to produce
non-locality but also connects contextuality and non-locality, two fundamental
quantum resources that are critical for quantum computation and secure
communication tasks.
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