Measurement-base-independent test for genuine multipartite entanglement

Autor(en)

Andreas Gabriel, Lukasz Rudnicki, Beatrix C. Hiesmayr

Abstrakt

We investigate a priori detection probabilities of genuine multipartite entanglement (GME). Even if one does not have knowledge of the basis in which a state is produced by a source, how a channel decoheres it or of the very working of the detectors used, we find that it is possible to detect GME with reasonably high probability in a feasible fashion. We show that by means of certain separability criteria, GME can be detected in a measurement-base-independent way. Our method provides several applications whenever e.g. state tomography is not possible or too demanding, and is a tool to investigate security issues in multi-particle quantum cryptographical protocols.

Organisation(en)

Teilchenphysik

Externe Organisation(en)

Polish Academy of Sciences (PAS)

Journal

New Journal of Physics

Band

15

Anzahl der Seiten

11

ISSN

1367-2630

DOI

https://doi.org/10.1088/1367-2630/15/7/073033

Publikationsdatum

07-2013

Peer-reviewed

Ja

ÖFOS 2012

103036 Theoretische Physik, 103025 Quantenmechanik

Schlagwörter

Link zum Portal

https://ucrisportal.univie.ac.at/de/publications/d351a591-3b78-4d53-96f5-194c85fadba3