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Open Quantum Systems Decoherence

Leggett-Garg tests of macro-realism for multi-particle systems including double-well Bose-Einstein condensates

arXiv

Authors: L. Rosales-Zárate, B. Opanchuk, Q. Y. He, M. D. Reid

Year

2016

Paper ID

41767

Status

Preprint

Abstract Read

~2 min

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Abstract

We construct quantifiable generalisations of Leggett-Garg tests for macro/ mesoscopic realism and noninvasive measurability that apply when not all outcomes of measurement can be identified as arising from one of two macroscopically distinguishable states. We show how quantum mechanics predicts a negation of the LG premises for proposals involving ideal-negative-result, weak and quantum non-demolition measurements on dynamical entangled systems, as might be realised with two-well Bose-Einstein condensates, path-entangled NOON states and atom interferometers.

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We construct quantifiable generalisations of Leggett-Garg tests for macro/ mesoscopic realism and noninvasive measurability that apply when not all outcomes of measurement can...

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References & Citation Signals

[1] DOI https://doi.org/arXiv:1612.05726 [2] arXiv https://arxiv.org/abs/1612.05726 [3] Publisher https://arxiv.org/abs/1612.05726

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