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Correlation between measured and unmeasured quantities in quantum mechanics, locality, and the legitimacy of counterfactual reasoning

2010/04/18 by Cohen, Oliver
#FOS: Physical sciences #Quantum Physics (quant-ph)

paper · doi:10.48550/arxiv.1004.3011

Abstract

A correlation measure relating to measured and unmeasured local quantities in quantum mechanics is introduced, and is then applied to assess the locality implications for Bell/CHSH and similar set-ups. This leads to some interesting results, and the scheme is extended to the generalized no-signalling boxes framework. Some questions are raised about the use of counterfactual reasoning in quantum mechanics.

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