Applying Bell's Theorem to Non-Photonic Entanglement

[twoslit]

This may seem like a silly question, but does Bell's theorem and the experimental design giving rise to the EPR phenomenon apply only to photons? Or could one, in principle, demonstrate this with entanglement of things with a rest mass, so moving at less than the speed of light? (I realize of course that this would remove the 'paradoxical' flavor since the detectors could communicate, but I am less interested in this aspect of the EPR.)

 

[bhobba]

This may seem like a silly question, but does Bell's theorem and the experimental design giving rise to the EPR phenomenon apply only to photons?

It applies to anything entangled in that way - electrons, muons - anything.

It still retains exactly the same issues.

Thanks
Bill