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Are violations to temporal Bell inequalities there when somebody looks?

Tommaso Calarco·Marcello Cini·Roberto Onofrio
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Abstract

The possibility of observing violations of temporal Bell inequalities, originally proposed by Leggett as a mean of testing the quantum mechanical delocalization of suitably chosen macroscopic bodies, is discussed by taking into account the effect of the measurement process. A general criterion quantifying this possibility is defined and shown not to be fulfilled by the various experimental configurations proposed so far to test inequalities of different forms.

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Tommaso Calarco, Marcello Cini, Roberto Onofrio. 1999-08-09. Are violations to temporal Bell inequalities there when somebody looks?. https://doi.org/10.1209/epl/i1999-00403-3

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