%0 Journal Article
%D 2010
%T Contextuality in Quantum Mechanics: Testing the Klyachko Inequality
%A Jeffrey Bub
%A Allen Stairs
%X The Klyachko inequality is an inequality for the probabiities of the values of five observables of a spin-1 particle, which is satisfied by any noncontextual assignment of values to this set of observables, but is violated by the probabilities defined by a certain quantum state. We describe an experiment between two entangled spin-1 particles to test contextuality via a related inequality. We point out that a test of contextuality by measurements on a single particle to confirm the Klyachko inequality requires an assumption of non-disturbance by the measuring instrument, which is avoided in the two-particle experiment.
%8 2010/06/02
%G eng
%U http://arxiv.org/abs/1006.0500v2