A quantum channel with additive minimum output entropy

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dc.creatorDatta, Nilanjana
dc.creatorHolevo, Alexander S.
dc.creatorSuhov, Yuri M.
dc.date2004-03-09
dc.date.accessioned2026-07-07T06:09:16Z
dc.date.available2026-07-07T06:09:16Z
dc.descriptionWe give a direct proof of the additivity of the minimum output entropy of a particular quantum channel which breaks the multiplicativity conjecture. This yields additivity of the classical capacity of this channel, a result obtained by a different method by Matsumoto and Yura [quant-ph/0306009]. Our proof relies heavily upon certain concavity properties of the output entropy which are of independent interest.
dc.description15 pages, 2 figures
dc.identifierhttps://arxiv.org/abs/quant-ph/0403072
dc.identifierhttp://arxiv.org/abs/quant-ph/0403072
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/91903
dc.subjectQuantum Physics
dc.titleA quantum channel with additive minimum output entropy
dc.typetext

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