Functional Bell inequalities can serve as a stronger entanglement witness

Preprint

24 June 2002

preprint
Published by arXiv in arXiv

https://doi.org/10.48550/arXiv.quant-ph/0206165

Abstract

We consider a Bell inequality for a continuous range of settings of the apparatus at each site. This "functional" Bell inequality gives a better range of violation for generalized GHZ states. Also a family of N-qubit bound entangled states violate this inequality for N>5.

Keywords

STRONGER ENTANGLEMENT
ENTANGLEMENT WITNESS
FUNCTIONAL BELL
GENERALIZED GHZ
BELL INEQUALITY
BOUND ENTANGLED
INEQUALITY
GHZ STATES
WITNESS

All Related Versions

Version 1, 2002-06-24, ArXiv
Published version: Physical Review A, 66 (6), 062318.

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