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.
- Received 20 February 2006
DOI:https://doi.org/10.1103/PhysRevLett.97.110401
©2006 American Physical Society