Nonlocal variables with product-state eigenstates
Berry Groisman, Lev Vaidman · Journal of Physics A Mathematical and General · 2001
An alternative proof for existence of `quantum nonlocality without entanglement', i.e. existence of variables with product-state eigenstates which cannot be measured locally, is presented. A simple `nonlocal' variable for the case of one-way communication is given and the limit for its approximate measurability is found.