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Testing a Bell inequality in multipair scenarios

Authors
Popescu, Sandu
Published in Physical Review. A. 2008, vol. 78, no. 6, p. 1-8
Abstract To date, most efforts to demonstrate quantum nonlocality have concentrated on systems of two (or very few) particles. It is, however, difficult in many experiments to address individual particles, making it hard to highlight the presence of nonlocality. We show how a natural setup with no access to individual particles allows one to violate the Clauser-Horne-Shimony-Holt inequality with many pairs, including in our analysis effects of noise and losses. We discuss the case of distinguishable and indistinguishable particles. Finally, a comparison of these two situations provides insight into the complex relation between entanglement and nonlocality.
Keywords Bell theoremQuantum entanglement
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BANCAL, Jean-Daniel et al. Testing a Bell inequality in multipair scenarios. In: Physical Review. A, 2008, vol. 78, n° 6, p. 1-8. https://archive-ouverte.unige.ch/unige:1120

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Deposited on : 2009-03-09

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