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Quantum Steering and Spacelike Separation



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Navascués Cobo, Miguel and Pérez García, David (2012) Quantum Steering and Spacelike Separation. Physical Review Letters, 109 (16). ISSN 0031-9007


Official URL: http://dx.doi.org/10.1103/PhysRevLett.109.160405


In non-relativistic quantum mechanics, measurements performed by separate observers are modeled via tensor products. In Algebraic Quantum Field Theory, though, local observables corresponding to space-like separated parties are just required to commute. The problem of determining whether these two definitions of "separation" lead to the same set of bipartite correlations is known in non-locality as Tsirelson's problem. In this article, we prove that the analog of Tsirelson's problem in steering scenarios is false. That is, there exists a steering inequality that can be violated or not depending on how we define space-like separation at the operator level.

Item Type:Article
Subjects:Sciences > Physics > Quantum theory
ID Code:17431
Deposited On:13 Dec 2012 10:24
Last Modified:04 Dec 2014 08:30

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