Title | Genuine N -partite entanglement without N -partite correlation functions |

Publication Type | Journal Article |

Year of Publication | 2017 |

Authors | Tran, MC, Zuppardo, M, de Rosier, A, Knips, L, Laskowski, W, Paterek, T, Weinfurter, H |

Journal | Physical Review A |

Volume | 95 |

Issue | 6 |

Pages | 062331 |

Date Published | 2017/06/26 |

Abstract | A genuinely N-partite entangled state may display vanishing N-partite correlations measured for arbitrary local observables. In such states the genuine entanglement is noticeable solely in correlations between subsets of particles. A straightforward way to obtain such states for odd N is to design an “antistate” in which all correlations between an odd number of observers are exactly opposite. Evenly mixing a state with its antistate then produces a mixed state with no N-partite correlations, with many of them genuinely multiparty entangled. Intriguingly, all known examples of “entanglement without correlations” involve an |

URL | https://journals.aps.org/pra/abstract/10.1103/PhysRevA.95.062331 |

DOI | 10.1103/PhysRevA.95.062331 |