Abstract
A state of a composite quantum system is called classically correlated if it can be approximated by convex combinations of product states, and Einstein-Podolsky-Rosen correlated otherwise. Any classically correlated state can be modeled by a hidden-variable theory and hence satisfies all generalized Bell’s inequalities. It is shown by an explicit example that the converse of this statement is false.
- Received 1 May 1989
DOI:https://doi.org/10.1103/PhysRevA.40.4277
©1989 American Physical Society