We report the first state-independent experimental test of quantum contextuality on a single photonic qutrit (three-dimensional system), based on a recent theoretical proposal [Yu and Oh, Phys. Rev. Lett. 108, 030402 (2012)]. Our experiment spotlights quantum contextuality in its most basic form, in a way that is independent of either the state or the tensor product structure of the system.
@article{arxiv.1207.0059,
title = {State-independent experimental test of quantum contextuality in an indivisible system},
author = {C. Zu and Y. -X. Wang and D. -L. Deng and X. -Y. Chang and K. Liu and P. -Y. Hou and H. -X. Yang and L. -M. Duan},
journal= {arXiv preprint arXiv:1207.0059},
year = {2015}
}