A simple proof of the strong subadditivity inequality

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dc.creatorNielsen, Michael A.
dc.creatorPetz, Denes
dc.date2004-08-20
dc.date2005-06-08
dc.date.accessioned2026-07-07T06:10:41Z
dc.date.available2026-07-07T06:10:41Z
dc.descriptionArguably the deepest fact known about the von Neumann entropy, the strong subadditivity inequality is a potent hammer in the quantum information theorist's toolkit. This short tutorial describes a simple proof of strong subadditivity due to Petz [Rep. on Math. Phys. 23 (1), 57--65 (1986)]. It assumes only knowledge of elementary linear algebra and quantum mechanics.
dc.description7 pages, resubmitted version of a tutorial paper submitted to Quantum Information and Computation
dc.identifierhttps://arxiv.org/abs/quant-ph/0408130
dc.identifierhttp://arxiv.org/abs/quant-ph/0408130
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/92316
dc.subjectQuantum Physics
dc.titleA simple proof of the strong subadditivity inequality
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