Nonlocality of W and Dicke states subject to losses

Tomer Jack Barnea, Gilles Pütz, Jonatan Bohr Brask, Nicolas Brunner, Nicolas Gisin, Yeong Cherng Liang

Research output: Contribution to journalArticle

11 Citations (Scopus)

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.

Original languageEnglish
Article number032108
JournalPhysical Review A - Atomic, Molecular, and Optical Physics
Volume91
Issue number3
DOIs
Publication statusPublished - 2015 Mar 13

All Science Journal Classification (ASJC) codes

  • Atomic and Molecular Physics, and Optics

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