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Entanglement and non-locality are different resources

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Published in New Journal of Physics. 2005, vol. 7, p. 88-88
Abstract Bell's theorem states that, to simulate the correlations created by measurement on pure entangled quantum states, shared randomness is not enough: some `non-local' resources are required. It has been demonstrated recently that all projective measurements on the maximally entangled state of two qubits can be simulated with a single use of a `non-local machine'. We prove that a strictly larger amount of this non-local resource is required for the simulation of pure non-maximally entangled states of two qubits |ψ(α)⟩ = cosα|00⟩ + sinα|11⟩ with . 0<α≤π/7.8 .
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BRUNNER, Nicolas, GISIN, Nicolas, SCARANI, Valerio. Entanglement and non-locality are different resources. In: New Journal of Physics, 2005, vol. 7, p. 88-88. https://archive-ouverte.unige.ch/unige:36753

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Deposited on : 2014-05-20

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