Test of nonlocality for a continuous-variable state based on an arbitrary number of measurement outcomes

Author(s)
Woo S. Son, Caslav Brukner, Myungshik Kim
Abstract

We propose a scheme to test Bell's inequalities for an arbitrary number of measurement outcomes on entangled continuous-variable (CV) states. The Bell correlation functions are expressible in terms of phase-space quasiprobability functions with complex ordering parameters, which can experimentally be determined via a local CV-qubit interaction. We demonstrate that CV systems can give higher violations of these Bell's inequalities than of the ones developed for two-outcome observables. Π2006 The American Physical Society.

Organisation(s)
External organisation(s)
University of Leeds, Queen's University Belfast
Journal
Physical Review Letters
Volume
97
No. of pages
4
ISSN
0031-9007
DOI
https://doi.org/10.1103/PhysRevLett.97.110401
Publication date
2006
Peer reviewed
Yes
Austrian Fields of Science 2012
103026 Quantum optics
Portal url
https://ucris.univie.ac.at/portal/en/publications/test-of-nonlocality-for-a-continuousvariable-state-based-on-an-arbitrary-number-of-measurement-outcomes(6eb98800-d13a-44aa-9804-27b26ab5cdf3).html