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## Main Question or Discussion Point

There is a recent article (Optics July 2015) claiming violation of Bell inequalities for classical fields:

"Shifting the quantum-classical boundary: theory and experiment for statistically classical optical fields"

https://www.osapublishing.org/optica/abstract.cfm?URI=optica-2-7-611

arxiv.org/pdf/1506.01305

It says that light's electric field in orthogonal directions behaves as superposition/entanglement.

Kind of dynamics of crystal lattice: we can see it as classical oscillations, or equivalently as superpositions of normal modes: phonons, which are described by quantum mechanics - can violate Bell inequalities.

What do you think about it?

"Shifting the quantum-classical boundary: theory and experiment for statistically classical optical fields"

https://www.osapublishing.org/optica/abstract.cfm?URI=optica-2-7-611

arxiv.org/pdf/1506.01305

It says that light's electric field in orthogonal directions behaves as superposition/entanglement.

Kind of dynamics of crystal lattice: we can see it as classical oscillations, or equivalently as superpositions of normal modes: phonons, which are described by quantum mechanics - can violate Bell inequalities.

What do you think about it?