Borivoje Dakić, Milovan Šuvakov, Tomasz Paterek, and Časlav Brukner
We prove that the results of a finite set of general quantum measurements on an arbitrary dimensional quantum system can besimulated using a polynomial (in measurements) number of hidden-variable states. In the limit of infinitely many measurements, our method gives models with the minimal number of hidden-variable states, which scales linearly with the number of measurements. These results can find applications in foundations of quantum theory, complexity studies, and classicalsimulations of quantum systems.
Phys. Rev. Lett. 101, 190402 (2008)