From Bell’s theorem and the Kochen-Specker theorem we know that any hidden variable model hoping to reproduce the predictions of quantum mechanics must be both non-local and contextual. What model satisfy these conditions and what research is being done?
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1$\begingroup$ I deleted the second question. Try to ask exactly one question per post. $\endgroup$– DanielSankMay 12, 2017 at 20:31
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$\begingroup$ Fair enough I shall that in mind in future. $\endgroup$– HiddenVariableMay 12, 2017 at 20:45
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Hidden variables theories is not the direction modern research actually goes since they are considered a mere complication of the systems without leading to further developing of the current one. The most popular non-local (deterministic) hidden variable theory is the De Broglie-Bohm theory which is considered to be equivalent to the other quantum mechanics formalities in terms of prediction even if this is disputed.
