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Maximum N-body correlations do not in general imply genuine multipartite entanglement
Eltschka, Christopher und Siewert, Jens (2020) Maximum N-body correlations do not in general imply genuine multipartite entanglement. Quantum 4 (229), S. 1-11.Veröffentlichungsdatum dieses Volltextes: 19 Feb 2020 11:31
Artikel
DOI zum Zitieren dieses Dokuments: 10.5283/epub.41653
Zusammenfassung
The existence of correlations between the parts of a quantum system on the one hand, and entanglement between them on the other, are different properties. Yet, one intuitively would identify strong N-party correlations with N-party entanglement in an N-partite quantum state. If the local systems are qubits, this intuition is confirmed: The state with the strongest N-party correlations is the ...
The existence of correlations between the parts of a quantum system on the one hand, and entanglement between them on the other, are different properties. Yet, one intuitively would identify strong N-party correlations with N-party entanglement in an N-partite quantum state. If the local systems are qubits, this intuition is confirmed: The state with the strongest N-party correlations is the Greenberger-Horne-Zeilinger (GHZ) state, which does have genuine multipartite entanglement. However, for high-dimensional local systems the state with strongest N-party correlations may be a tensor product of Bell states, that is, partially separable. We show this by introducing several novel tools for handling the Bloch representation.
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| Dokumentenart | Artikel | ||||
| Titel eines Journals oder einer Zeitschrift | Quantum | ||||
| Verlag: | VEREIN FORDERUNG OPEN ACCESS PUBLIZIERENS QUANTENWISSENSCHAF | ||||
|---|---|---|---|---|---|
| Ort der Veröffentlichung: | WIEN | ||||
| Band: | 4 | ||||
| Nummer des Zeitschriftenheftes oder des Kapitels: | 229 | ||||
| Seitenbereich: | S. 1-11 | ||||
| Datum | 10 Februar 2020 | ||||
| Institutionen | Physik > Institut für Theoretische Physik | ||||
| Identifikationsnummer |
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| Stichwörter / Keywords | STATES; | ||||
| Dewey-Dezimal-Klassifikation | 500 Naturwissenschaften und Mathematik > 530 Physik | ||||
| Status | Veröffentlicht | ||||
| Begutachtet | Ja, diese Version wurde begutachtet | ||||
| An der Universität Regensburg entstanden | Ja | ||||
| URN der UB Regensburg | urn:nbn:de:bvb:355-epub-416539 | ||||
| Dokumenten-ID | 41653 |
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