B How to evaluate whether a photon's polarization is in superposition?

fluidfcs
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Is there an accepted experimental methodology for determining whether a photon's polarization is in superposition or not?
 
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It is always in a superposition in some basis.
 
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fluidfcs said:
Is there an accepted experimental methodology for determining whether a photon's polarization is in superposition or not?
I think of quantum superposition the same way I think of electric field superposition. An electric field vector exists in space and is always a superposition of its components in some basis. The same thought is applicable for quantum superposition.
 
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