Contextual Values of Observables in Quantum Measurements

Details Contextual Values of Observables in Quantum Measurements Contextual Values of Observables in Quantum Measurements

2009-11-23

arxiv.org/abs/0911.4474v3

Phys. Rev. Lett. 104, 240401 (2010)

Physics

Quantum Physics

Publication version, 4 pages, 2 figures

Scientific paper

10.1103/PhysRevLett.104.240401

We introduce contextual values as a generalization of the eigenvalues of an observable that takes into account both the system observable and a general measurement procedure. This technique leads to a natural definition of a general conditioned average that converges uniquely to the quantum weak value in the minimal disturbance limit. As such, we address the controversy in the literature regarding the theoretical consistency of the quantum weak value by providing a more general theoretical framework and giving several examples of how that framework relates to existing experimental and theoretical results.

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