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Classical correlation alone supplies the anomaly to weak values

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arxiv 1410.8067 v1 pith:2333SDZL submitted 2014-10-29 quant-ph

classification quant-ph
keywords valuesweakanomalousclassicalaveragescorrelationsquestionalone
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The question of what is genuinely quantum about weak values is only ever going to elicit strongly subjective opinions---it is not a scientific question. Good questions, when comparing theories, are operational---they deal with the unquestionable outcomes of experiment. We give the anomalous shift of weak values an objective meaning through a generalization to an operational definition of anomalous post-selected averages. We show the presence of these averages necessitate correlations in every model giving rise to them---quantum or classical. Characterizing such correlations shows that they are ubiquitous. We present the simplest classical example without the need of disturbance realizing these generalized anomalous weak values.

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