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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.
Stable URL https://archive-ouverte.unige.ch/unige:12849
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arXiv: 0708.0584

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Deposited on : 2010-12-10

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