Measurement-base-independent test for genuine multipartite entanglement

Author(s)
Andreas Gabriel, Lukasz Rudnicki, Beatrix C. Hiesmayr
Abstract

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(s)
Particle Physics
External organisation(s)
Polish Academy of Sciences (PAS)
Journal
New Journal of Physics
Volume
15
No. of pages
11
ISSN
1367-2630
DOI
https://doi.org/10.1088/1367-2630/15/7/073033
Publication date
07-2013
Peer reviewed
Yes
Austrian Fields of Science 2012
103036 Theoretical physics, 103025 Quantum mechanics
Keywords
Portal url
https://ucris.univie.ac.at/portal/en/publications/measurementbaseindependent-test-for-genuine-multipartite-entanglement(d351a591-3b78-4d53-96f5-194c85fadba3).html