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Experimental Falsification of Leggett's Non-Local Variable Model

Ling, Alexander
Kurtsiefer, Christian
Lamas-Linares, Antia
Published in Physical Review Letters. 2007, vol. 99, no. 210407, p. 5 p.
Abstract Bell's theorem guarantees that no model based on local variables can reproduce quantum correlations. Also some models based on non-local variables, if subject to apparently "reasonable" constraints, may fail to reproduce quantum physics. In this paper, we introduce a family of inequalities, which allow testing Leggett's non-local model versus quantum physics, and which can be tested in an experiment without additional assumptions. Our experimental data falsify Leggett's model and are in agreement with quantum predictions.
arXiv: 0708.0584
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BRANCIARD, Cyril et al. Experimental Falsification of Leggett's Non-Local Variable Model. In: Physical Review Letters, 2007, vol. 99, n° 210407, p. 5 p. doi: 10.1103/PhysRevLett.99.210407 https://archive-ouverte.unige.ch/unige:12849

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Deposited on : 2010-12-10

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