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Abstract: I propose a scheme for reconstructing the weak value of an observable withoutthe need for weak measurements. The post-selection in weak measurements isreplaced by an initial projector measurement. The observable can be measuredusing any form of interaction, including projective measurements. Thereconstruction is effected by measuring the change in the expectation value ofthe observable due to the projector measurement. The weak value may takenonclassical values if the projector measurement disturbs the expectation valueof the observable.



Autor: Lars M. Johansen

Fuente: https://arxiv.org/







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