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Complete positivity and entangled degrees of freedom

F. Benatti·R. Floreanini·R. Romano
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Abstract

We study how some recently proposed noncontextuality tests based on quantum interferometry are affected if the test particles propagate as open systems in presence of a gaussian stochastic background. We show that physical consistency requires the resulting markovian dissipative time-evolution to be completely positive.

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F. Benatti, R. Floreanini, R. Romano. 2002-05-02. Complete positivity and entangled degrees of freedom. https://doi.org/10.1088/0305-4470%2F35%2F23%2F311

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