Partial measurement of the linked state. Relationship between Observed Uncertainty and Ensemble Coherence

In this paper, we consider a problem in which a part of a pure two-particle entangled state is measured. This generates an ensemble of quantum states in another part of the entangled state. The relationship between the property the uncertainty of the observable and the coherence of the dual ensemble for an arbitrary entanglement measure. The case is investigated in which a coherent dual ensemble is obtained by measuring the classical observable non-maximally adhered state. The uncertainty observed on the states of the Schmidt basis is considered.