We introduce measures of multipartite quantum correlations based on classical correlations in mutually unbiased bases. These classical correlations are measured in terms of the classical mutual information, which has a clear operational meaning. We present sufficient conditions under which these measures are maximized. States that have previously been shown to be particularly important in the context of local operations and classical communication fulfill these conditions and therefore maximize the correlation measures. In addition, we show how the introduced measures can be used to detect high-dimensional tripartite entanglement by using only a few local measurements.

Multipartite correlations in mutually unbiased bases

SAUERWEIN, DAVID;MACCHIAVELLO, CHIARA;MACCONE, LORENZO;KRAUS, BARBARA
2017-01-01

Abstract

We introduce measures of multipartite quantum correlations based on classical correlations in mutually unbiased bases. These classical correlations are measured in terms of the classical mutual information, which has a clear operational meaning. We present sufficient conditions under which these measures are maximized. States that have previously been shown to be particularly important in the context of local operations and classical communication fulfill these conditions and therefore maximize the correlation measures. In addition, we show how the introduced measures can be used to detect high-dimensional tripartite entanglement by using only a few local measurements.
2017
Esperti anonimi
Inglese
Internazionale
STAMPA
95
4
Atomic and Molecular Physics, and Optics
http://harvest.aps.org/bagit/articles/10.1103/PhysRevA.95.042315/apsxml
4
info:eu-repo/semantics/article
262
Sauerwein, David; Macchiavello, Chiara; Maccone, Lorenzo; Kraus, Barbara
1 Contributo su Rivista::1.1 Articolo in rivista
none
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11571/1178160
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