Entanglement detection via mutually unbiased bases

Autor(en)
Christoph Spengler, Marcus Huber, Stephen Brierley, Theodor Adaktylos, Beatrix Hiesmayr
Abstrakt

We investigate correlations among complementary observables. In particular, we show how to take advantage of mutually unbiased bases for the efficient detection of entanglement in arbitrarily high-dimensional, multipartite, and continuous-variable quantum systems. The introduced entanglement criteria are relatively easy to implement experimentally since they require only a few local measurement settings. In addition, we establish a link between the separability problem and the maximum number of mutually unbiased bases-opening an additional avenue in this long-standing open problem.

Organisation(en)
Teilchenphysik
Externe Organisation(en)
University of Bristol, Masaryk University
Journal
Physical Review A
Band
86
Anzahl der Seiten
8
ISSN
1050-2947
DOI
https://doi.org/10.1103/PhysRevA.86.022311
Publikationsdatum
2012
Peer-reviewed
Ja
ÖFOS 2012
103034 Teilchenphysik, 103025 Quantenmechanik
Link zum Portal
https://ucrisportal.univie.ac.at/de/publications/entanglement-detection-via-mutually-unbiased-bases(e7b0a6cc-f501-4e61-b649-bda02d6a1e07).html