Nonclassicality thresholds for multiqubit states: Numerical analysis

Autor(en)

Jacek Gruca, Wieslaw Laskowski, Marek Zukowski, Nikolai Kiesel, Witlef Wieczorek, Christian Schmid, Harald Weinfurter

Abstrakt

States that strongly violate Bell's inequalities are required in many quantum-informational protocols as, for example, in cryptography, secret sharing, and the reduction of communication complexity. We investigate families of such states with a numerical method which allows us to reveal nonclassicality even without direct knowledge of Bell's inequalities for the given problem. An extensive set of numerical results is presented and discussed.

Organisation(en)

Quantenoptik, Quantennanophysik und Quanteninformation

Externe Organisation(en)

University of Gdańsk, Max-Planck-Institut für Quantenoptik, Ludwig-Maximilians-Universität München, European Southern Observatory (Germany)

Journal

Physical Review A

Band

82

Anzahl der Seiten

8

ISSN

1050-2947

DOI

https://doi.org/10.1103/PhysRevA.82.012118

Publikationsdatum

2010

Peer-reviewed

Ja

ÖFOS 2012

103026 Quantenoptik

Link zum Portal

https://ucrisportal.univie.ac.at/de/publications/8b7bd3ae-190e-4683-8aa4-6a843807df8f