A two-copy comparison game yields an operational discriminability score that bounds CHSH values through noncontextual models and conditional state distinguishability.
(A3), Exy =π +|x s+|x ·b y −π −|x s−|x ·b y =r x ·b y,(A6) where we define the weighted steering vector rx :=π +|xs+|x −π −|xs−|x.(A7) 10
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Operational Discriminability: From Noncontextuality Bounds to Bell Correlations
A two-copy comparison game yields an operational discriminability score that bounds CHSH values through noncontextual models and conditional state distinguishability.