# Can Quantum-Mechanical Description of Physical Reality Be Considered Complete?

@article{Einstein1935CanQD, title={Can Quantum-Mechanical Description of Physical Reality Be Considered Complete?}, author={A. Einstein and B. Podolsky and N. Rosen}, journal={Physical Review}, year={1935}, volume={47}, pages={777-780} }

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 quantum mechanics in the case of two physical quantities described by non-commuting 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… CONTINUE READING

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Can Quantum-Mechanical Description of Physical Reality Be Considered Correct?

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@BULLET It was necessary to account for the probabilistic nature of QM by giving Bob particular actions to take, depending on the (unpredictable) outcome of the observation

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