An Upper Bound on Quantum Entropy
نویسنده
چکیده
Following ref [1], a classical upper bound for quantum entropy is identified and illustrated, 0 ≤ Sq ≤ ln(eσ/ 2~), involving the variance σ in phase space of the classical limit distribution of a given system. A fortiori, this further bounds the corresponding information-theoretical generalizations of the quantum entropy proposed by Rényi.
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