Functional Bell inequalities can serve as a stronger entanglement witness

Details Functional Bell inequalities can serve as a stronger entanglement witness Functional Bell inequalities can serve as a stronger entanglement witness

2002-06-24

arxiv.org/abs/quant-ph/0206165v1

Phys. Rev. A 66, 062318 (2002)

Physics

Quantum Physics

4 pages, REVTeX4

Scientific paper

10.1103/PhysRevA.66.062318

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.

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