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Quantum correlations from local amplitudes and the resolution of the Einstein-Podolsky-Rosen nonlocality puzzle

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dc.contributor.author Unnikrishnan, C. S
dc.date.accessioned 2008-08-14T05:36:47Z
dc.date.available 2008-08-14T05:36:47Z
dc.date.issued 2001-09
dc.identifier.citation Optics and Spectroscopy, Vol. 91, No. 3, pp. 393 – 398 en
dc.identifier.issn 0030-400X
dc.identifier.uri http://hdl.handle.net/2248/3122
dc.description.abstract The Einstein-Podolsky-Rosen (EPR) nonlocality puzzle has been recognized as one of the most important unresolved issues in the foundational aspects of quantum mechanics. We show that the problem is more or less entirely resolved, if the quantum correlations are calculated directly from local quantities, which preserve the phase information in the quantum system. We assume strict locality for the probability amplitudes instead of local realism for the outcomes and calculate an amplitude correlation function. Then the experimentally observed correlation of outcomes is calculated from the square of the amplitude correlation function. Locality of amplitudes implies that measurement on one particle does not collapse the companion particle to a definite state. Apart from resolving the EPR puzzle, this approach shows that the physical interpretation of apparently “nonlocal” effects, such as quantum teleportation and entanglement swapping, are different from what is usually assumed. Bell-type measurements do not change distant states. Yet the correlations are correctly reproduced, when measured, if complex probability amplitudes are treated as the basic local quantities. As examples, we derive the quantum correlations of two-particle maximally entangled states and the three-particle Greenberger-Horne-Zeilinger entangled state. en
dc.format.extent 3894 bytes
dc.format.mimetype application/pdf
dc.language.iso en en
dc.publisher Springer en
dc.relation.uri http://www.springerlink.com/content/x1187p17rl665k15/?p=9bc1bdd7f489499ca4211ab375966ef9&pi=11 en
dc.subject Einstein-Podolsky-Rosen en
dc.subject Quantum Mechanics en
dc.subject Amplitude Correlation Function en
dc.subject EPR Puzzle en
dc.title Quantum correlations from local amplitudes and the resolution of the Einstein-Podolsky-Rosen nonlocality puzzle en
dc.type Article en

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