# Can Quantum-Mechanical Description of Reality be Considered Complete?

@inproceedings{Einstein2019CanQD, title={Can Quantum-Mechanical Description of Reality be Considered Complete?}, author={Albert B. Einstein and Boris Podolsky and Nathan Rosen}, year={2019} }

In a complete theory there is an element corresponding to each element of reality. A sufficient condition for the reality of a physical quantity is the possibility of predicting it with certainty, without disturbing the system. In quantummechanics in the case of two physical quantities described by noncommuting operators, the knowledge of one precludes the knowledge of the other. Then either (1) the description of reality given by the wave function in quantum mechanics is not complete or (2…

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