Abstract:
We consider a situation, when a part of a pure entangled state is measured, which generates the
ensemble of quantum states for the other part. We consider the connection between the uncertainty
property of the observable and coherence of the dual ensemble for any entanglement measure. We study
the formation of the coherent ensemble by measuring not maximally entangled state with classical
observable.
Keywords:quantum mechanics, uncertainty relations, coherence of quantum states’ ensemble.