In quantum physics there are circumstances where the direct measurement of particular observables encounters difficulties; in some of these cases, however, its value can be evaluated, i.e. it can be inferred by measuring another observable characterized by perfect correlation with the observable of interest. Though an evaluation is often interpreted as a measurement of the evaluated observable, we prove that the two concepts cannot be identified in quantum physics, because the identification yields contradictions. Then, we establish the conceptual status of evaluations in Quantum Theory and the role can be ascribed to them.
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|Titolo:||Measurements of observables replaced by "evaluations" in Quantum Theory|
|Data di pubblicazione:||2015|
|Appare nelle tipologie:||1.1 Articolo in rivista|