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Reconstruction of quantum states of spin systems via the Jaynes principle of maximum entropy

We apply the Jaynes principle of maximum entropy for the partial reconstruction of correlated spin states. We determine the minimum set of observables which are necessary for the complete reconstruction of the most correlated states of systems composed of spins-1/2 (e.g., the Bell and the Greenberger-Horne-Zeilinger states). We investigate to what extent an incomplete measurement can reveal nonclassical features of correlated spin states.

preprint1997arXivOpen access
V. BuzekG. DrobnyG. AdamR. DerkaP. L. Knight
quant-ph
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Open access5 authors1 topic
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V. BuzekG. DrobnyG. AdamR. DerkaP. L. Knight

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