Proposed experiments of qutrit state-independent contextuality and two-qutrit contextuality-based nonlocality

Details Proposed experiments of qutrit state-independent contextuality and two-qutrit contextuality-based nonlocality Proposed experiments of qutrit state-independent contextuality and two-qutrit contextuality-based nonlocality

2012-03-05

arxiv.org/abs/1203.0981v1

Phys. Rev. A 85 (2012) 032108

Physics

Quantum Physics

REVTeX4, 5 pages, 3 figures

Scientific paper

10.1103/PhysRevA.85.032108

Recent experiments have demonstrated ququart state-independent quantum contextuality and qutrit state-dependent quantum contextuality. So far, the most basic form of quantum contextuality pointed out by Kochen and Specker, and Bell, has eluded experimental confirmation. Here we present an experimentally feasible test to observe qutrit state-independent quantum contextuality using single photons in a three-path setup. In addition, we show that if the same measurements are performed on two entangled qutrits, rather than sequentially on the same qutrit, then the noncontextual inequality becomes a Bell inequality. We show that this connection also applies to other recently introduced noncontextual inequalities.

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