Functional Bell inequalities can serve as a stronger entanglement witness
classification
🪐 quant-ph
keywords
bellinequalityfunctionalrangestatesapparatusbetterbound
read the original 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.
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