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We experimentally test quantum contextuality of a single qutrit using NMR.The contextuality inequalities based on nine observables developed by Kurzynskiet. al. are first reformulated in terms of traceless observables which can bemeasured in an NMR experiment. These inequalities reveal the contextuality ofalmost all single-qutrit states. We demonstrate the violation of the inequalityon four different initial states of a spin-1 deuterium nucleus oriented in aliquid crystal matrix, and follow the violation as the states evolve in time.We also describe and experimentally perform a single-shot test of contextualityfor a subclass of qutrit states whose density matrix is diagonal in the energybasis.

Experimental demonstration of quantum contextuality on an NMR qutrit