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A remark on the concavity of entropy

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Abstract

We investigate to what extent theorems about quantum mechanical or classical entropy can be generalized to functionals of the type ρ→Tr f(ρ), or ψ→∫f(ψ)dμ, respectively, wheref is an arbitrary concave function.

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Authors and Affiliations

  1. Institut für Theoretische Physik, Universität Wien, Vienna, Austria

    A. Wehrl

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  1. A. Wehrl
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Work supported in part by Fonds zur Förderung der wissenschaftlichen Forschung in Österreich, Project No. 3569.

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Wehrl, A. A remark on the concavity of entropy. Found Phys 9, 939–946 (1979). https://doi.org/10.1007/BF00708702

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  • DOI: https://doi.org/10.1007/BF00708702

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