Remarks on CHSH inequality, Tsirelson bound, Popescu-Rohlich boxes and inner product spaces
classification
🪐 quant-ph
keywords
boundboxescorrelationinnermatrixproductspacestsirelson
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The EPR correlation matrix admit a Hilbert model if it can be extended to a positive full correlation matrix. A simple proof of the corresponding Tsirelson bound is given and the relations to PR boxes and indefinite inner product spaces are briefly discussed.
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