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arXiv · 1207.1212

Practically state-independent test of contextuality with 9 observables

Pawel Kurzynski·Dagomir Kaszlikowski
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Abstract

We propose a test of quantum contextuality for a single three-level system that uses nine projective measurements. It has a form of an inequality that has to be satisfied by any non-contextual theory and which is violated by any quantum state, except for the maximally mixed one. Due to the fact that there is only a single state that does not exhibit contextuality, it is natural to ask what the difference between state-independent tests and the one proposed here is.

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Pawel Kurzynski, Dagomir Kaszlikowski. 2012-07-05. Practically state-independent test of contextuality with 9 observables. https://doi.org/10.1103/physreva.86.042125

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