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arxiv: hep-th/0609148 · v6 · submitted 2006-09-21 · ✦ hep-th · gr-qc· physics.comp-ph· quant-ph

A Classical Bound on Quantum Entropy

classification ✦ hep-th gr-qcphysics.comp-phquant-ph
keywords classicalentropyquantumboundsigmaboundscorrespondingdistribution
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A classical upper bound for quantum entropy is identified and illustrated, $0\leq S_q \leq \ln (e \sigma^2 / 2\hbar)$, involving the variance $\sigma^2$ 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 Renyi.

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