Skip to content

Functional Bell inequalities can serve as a stronger entanglement witness

Aditi Sen De, Ujjwal Sen, Marek Zukowski

quant-pharXiv: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.

Create a lesson