Another for Leggett inequalities.

[yoda jedi]

New J. Phys. 12 123007, 2010.

Violation of Leggett inequalities in orbital angular momentum subspaces.

We report an experimental test of Leggett's non-local hidden variable theory in an orbital angular momentum (OAM) state space of light. We show that the correlations we observe are in conflict with Leggett's model, thus excluding a particular class of non-local hidden variable theories for the first time in a non-polarization state space. It is known that the violation of the Leggett inequality becomes stronger as more detection settings are used. The required measurements become feasible in an OAM subspace, and we demonstrate this by testing the inequality using three and four settings. We observe excellent agreement with quantum predictions and a violation of five and six standard deviations, respectively, compared to Leggett's non-local hidden variable theory.

 

[eljose79]

Dear forum members,

I am excited to share with you the results of our recent experiment published in New Journal of Physics. Our team has performed an experimental test of Leggett's non-local hidden variable theory in an orbital angular momentum (OAM) state space of light. This is the first time that such a test has been conducted in a non-polarization state space, and our findings have significant implications for our understanding of quantum mechanics.

Our results show a clear violation of Leggett's inequality, which is a crucial test for non-local hidden variable theories. This violation becomes even stronger as more detection settings are used, and we were able to demonstrate this in an OAM subspace by using three and four settings. This is a significant achievement, as these measurements were previously thought to be unfeasible in an OAM state space.

We are pleased to report that our experimental results are in excellent agreement with quantum predictions, providing further evidence for the validity of quantum mechanics. Our findings also exclude a specific class of non-local hidden variable theories, which is a significant step towards a better understanding of the fundamental principles governing our universe.

We hope that our work will inspire further research in this field and contribute to the ongoing discussions about the nature of quantum mechanics. Thank you for your attention, and we look forward to hearing your thoughts and feedback on our findings.