Editorial

Laskowski, J. S.

doi:10.1080/07349349908945588

Cited by 1 publication

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“…That is, the inequality (7), which we use for the construction of the condition (10), is more sensitive than the ones proposed in [4]. The same sensitivity factor was obtained in [5], however, it requires a specific choice of observables.…”

Section: A Biseparabilitymentioning

confidence: 85%

“…It might be the case, that a conjunction of rotational invariance principle, which must hold for the form of physical laws, of local realism, and of some other principle, perhaps the one introduced by Zeilinger and Brukner [8], may lead to an ultimate version of Bell's theorem for qubit systems. One can put forward this speculation, because more generalized inequalities involving rotational invariance, of the type introduced in [9], lead to even more sensitive conditions for true non-classical N qubit correlations than (7), which in case of some specific examples are equivalent to non-separability criteria [10].…”

Section: Discussionmentioning

confidence: 99%

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Detection ofN-particle entanglement with generalized Bell inequalities

Laskowski

Żukowski

2005

Phys. Rev. A

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We show that the generalized Bell-type inequality, explicitly involving rotational symmetry of physical laws, is very efficient in distinguishing between true N particle quantum correlations and correlations involving less particles. This applies to various types of generalized partial separabilities. We also give a rigorous proof that the new Bell inequalities are maximally violated by the GHZ states, and find a very handy description of the N -qubit correlation function.

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Section: A Biseparabilitymentioning

confidence: 85%