Testing genuine multipartite nonlocality in phase spacea

Seung-Woo Lee*, Mauro Paternostro, Jinhyoung Lee, Hyunseok Jeong

*Corresponding author for this work

Research output: Contribution to journalArticle

13 Citations (Scopus)
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Abstract

We demonstrate genuine three-mode nonlocality based on phase-space formalism. A Svetlichny-type Bell inequality is formulated in terms of the s-parametrized quasiprobability function. We test such a tool using exemplary forms of three-mode entangled states, identifying the ideal measurement settings required for each state. We thus verify the presence of genuine three-mode nonlocality that cannot be reproduced by local or nonlocal hidden variable models between any two out of three modes. In our results, GHZ- and W-type nonlocality can be fully discriminated. We also study the behavior of genuine tripartite nonlocality under the effects of detection inefficiency and dissipation induced by local thermal environments. Our formalism can be useful to test the sharing of genuine multipartite quantum correlations among the elements of some interesting physical settings, including arrays of trapped ions and intracavity ultracold atoms.

Original languageEnglish
Article number022123
Number of pages9
JournalPhysical Review A (Atomic, Molecular, and Optical Physics)
Volume87
Issue number2
DOIs
Publication statusPublished - 27 Feb 2013

Keywords

  • CONTINUOUS-VARIABLES
  • QUANTUM
  • BELL
  • ENTANGLEMENT

ASJC Scopus subject areas

  • Atomic and Molecular Physics, and Optics

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