Underlining some limitations of the statistical formalism in quantum   mechanics: Reply to the Comment of Bodor and Di\'osi
  In a paper of us, it is showed that Density Matrices do not provide a complete description of ensembles of states in quantum mechanics, since they lack measurable information concerning the preparation of the ensembles. Bodor and Di\'osi have later posted a comment on that article, which agrees on some points of it but disagrees on some others. This reply is intended to clarify the discussion. 
F. Fratini and A. G. Hayrapetyan
quant-ph