Cauchy–Schwarz inequality for general measurements as an entanglement criterion

Cauchy–Schwarz inequality for general measurements as an entanglement criterion Considering the broadest set of measurements allowed by quantum mechanics, we demonstrate that the violation Cauchy–Schwarz inequality for any-order correlation function signals the entanglement among bosons. Our result is general—it applies to any system of bosons, even when the number of particles is not fixed, provided that there is no coherence between different number states. Quantum Information Processing Springer Journals

Cauchy–Schwarz inequality for general measurements as an entanglement criterion

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Springer US
Copyright © 2015 by Springer Science+Business Media New York
Physics; Quantum Information Technology, Spintronics; Quantum Computing; Data Structures, Cryptology and Information Theory; Quantum Physics; Mathematical Physics
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