A New Proof of the Direct Part of Stein's Lemma in Quantum Hypothesis Testing

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dc.creatorOgawa, Tomohiro
dc.creatorHayashi, Masahito
dc.date2001-10-21
dc.date.accessioned2026-07-07T06:02:53Z
dc.date.available2026-07-07T06:02:53Z
dc.descriptionThe direct part of Stein's lemma in quantum hypothesis testing is revisited based on a key operator inequality between a density operator and its pinching. The operator inequality is used to show a simple proof of the direct part of Stein's lemma without using Hiai-Petz's theorem, along with an operator monotone function, and in addition it is also used to show a new proof of Hiai-Petz's theorem.
dc.description6 pages, submitted to ISIT2002
dc.identifierhttps://arxiv.org/abs/quant-ph/0110125
dc.identifierhttp://arxiv.org/abs/quant-ph/0110125
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/89785
dc.subjectQuantum Physics
dc.titleA New Proof of the Direct Part of Stein's Lemma in Quantum Hypothesis Testing
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