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Nonlocality of W and Dicke states subject to losses

Publication date2015
Abstract

We discuss the nonlocality of W and Dicke states subject to losses. We consider two noise models, namely, loss of excitations and loss of particles, and investigate how much loss can be tolerated such that the final state remains nonlocal. This leads to a measure of robustness of the nonlocality of Dicke states, with a clear physical interpretation. Our results suggest that the relation between nonlocality and entanglement of Dicke states is not monotonic.

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Citation (ISO format)
BARNEA, Tomer et al. Nonlocality of W and Dicke states subject to losses. In: Physical review, A, Atomic, molecular, and optical physics, 2015, vol. 91, n° 3, p. 032108. doi: 10.1103/PhysRevA.91.032108
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ISSN of the journal1050-2947
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