Quantum states with Einstein-Podolsky-Rosen correlations admitting a hidden-variable model
- 1 October 1989
- journal article
- research article
- Published by American Physical Society (APS) in Physical Review A
- Vol. 40 (8) , 4277-4281
- https://doi.org/10.1103/physreva.40.4277
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.Keywords
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