On the Einstein-Podolsky-Rosen paradox
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In this article, it was shown that even without such a separability or locality requirement, no hidden variable interpretation of quantum mechanics is possible and that such an interpretation has a grossly nonlocal structure, which is characteristic of any such theory which reproduces exactly the quantum mechanical predictions.Abstract:
THE paradox of Einstein, Podolsky and Rosen [1] was advanced as an argument that quantum mechanics could not be a complete theory but should be supplemented by additional variables These additional variables were to restore to the theory causality and locality [2] In this note that idea will be formulated mathematically and shown to be incompatible with the statistical predictions of quantum mechanics It is the requirement of locality, or more precisely that the result of a measurement on one system be unaffected by operations on a distant system with which it has interacted in the past, that creates the essential difficulty There have been attempts [3] to show that even without such a separability or locality requirement no "hidden variable" interpretation of quantum mechanics is possible These attempts have been examined elsewhere [4] and found wanting Moreover, a hidden variable interpretation of elementary quantum theory [5] has been explicitly constructed That particular interpretation has indeed a grossly nonlocal structure This is characteristic, according to the result to be proved here, of any such theory which reproduces exactly the quantum mechanical predictionsread more
Citations
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Weak quantum theory: Complementarity and entanglement in physics and beyond
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What is quantum mechanics trying to tell us
TL;DR: In this article, the proper subject of physics is defined as correlation and only correlation, and the problem of understanding the nature of quantum mechanics is separated from the hard problem of the objective probability in individual systems and the even harder problem of conscious awareness.
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Computable measure of nonclassicality for light.
TL;DR: The entanglement potential detects nonclassicality, has a direct physical interpretation, and can be computed efficiently, which make it stand out from previously proposed non classicality measures.
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Quantum theory cannot consistently describe the use of itself
Daniela Frauchiger,Renato Renner +1 more
TL;DR: In this article, a Gedanken experiment was conducted to investigate the question whether quantum theory can, in principle, have universal validity in complex systems, and it was shown that quantum theory cannot be extrapolated to complex systems in a straightforward manner.
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Cost of Exactly Simulating Quantum Entanglement with Classical Communication
TL;DR: It is shown that, in the case of a single pair of qubits in a Bell state, a constant number of bits of communication is always sufficient — regardless of the number of measurements under consideration.
References
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Can Quantum-Mechanical Description of Physical Reality Be Considered Complete?
TL;DR: Consideration of the problem of making predictions concerning a system on the basis of measurements made on another system that had previously interacted with it leads to the result that one is led to conclude that the description of reality as given by a wave function is not complete.
Journal ArticleDOI
Discussion of Experimental Proof for the Paradox of Einstein, Rosen, and Podolsky
D. Bohm,Yakir Aharonov +1 more
TL;DR: A brief review of the physical significance of the paradox of Einstein, Rosen, and Podolsky is given, and it is shown that it involves a kind of correlation of the properties of distant noninteracting systems, which is quite different from previously known kinds of correlation as discussed by the authors.