Should the wave-function be a part of the quantum ontological state?
arXiv:1209.2565
Abstract
We analyze the recent no go theorem by Pusey, Barrett and Rudolph (PBR) concerning ontic and epistemic hidden variables. We define two fundamental requirements for the validity of the result. We finally compare the models satisfying the theorem with the historical hidden variable approach proposed by de Broglie and Bohm.
Progress in Physics, vol 4 (October 2012)