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Revista Brasileira de Ensino de Física

Print version ISSN 1806-1117On-line version ISSN 1806-9126

Abstract

MAZIERO, Jonas. Understanding von Neumann’s entropy. Rev. Bras. Ensino Fís. [online]. 2015, vol.37, n.1, 1314.  Epub Mar 30, 2015. ISSN 1806-1117.  http://dx.doi.org/10.1590/S1806-11173711701.

We review the postulates of quantum mechanics that are needed to discuss von Neumann’s entropy. We introduce it as a generalization of Shannon’s entropy and propose a simple game that makes it easier to understand itd physical meaning.

Keywords : quantum mechanics; density operator; von Neumann’s entropy.

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