Please use this identifier to cite or link to this item: https://doi.org/10.1103/PhysRevA.86.042125
Title: Contextuality of almost all qutrit states can be revealed with nine observables
Authors: Kurzyński, P. 
Kaszlikowski, D. 
Issue Date: 31-Oct-2012
Source: Kurzyński, P., Kaszlikowski, D. (2012-10-31). Contextuality of almost all qutrit states can be revealed with nine observables. Physical Review A - Atomic, Molecular, and Optical Physics 86 (4) : -. ScholarBank@NUS Repository. https://doi.org/10.1103/PhysRevA.86.042125
Abstract: We propose a test of quantum contextuality for a single three-level system that uses nine projective measurements. It has the form of an inequality that has to be satisfied by any noncontextual theory. We show that for any qutrit state, except for the maximally mixed state, one can always find a set of nine observables for which the corresponding inequality is violated. This inequality is a test of contextuality that may offer insight into the relation between state-dependent and state-independent contextuality tests present in the literature. © 2012 American Physical Society.
Source Title: Physical Review A - Atomic, Molecular, and Optical Physics
URI: http://scholarbank.nus.edu.sg/handle/10635/52844
ISSN: 10502947
DOI: 10.1103/PhysRevA.86.042125
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