Proposed experiments of qutrit state-independent contextuality and   two-qutrit contextuality-based nonlocality
  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. 
Adan Cabello, Elias Amselem, Kate Blanchfield, Mohamed Bourennane,   Ingemar Bengtsson
quant-ph