Optimal signal ensembles

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dc.creatorSchumacher, Benjamin
dc.creatorWestmoreland, Michael D.
dc.date1999-12-31
dc.date.accessioned2026-07-07T06:17:25Z
dc.date.available2026-07-07T06:17:25Z
dc.descriptionClassical messages can be sent via a noisy quantum channel in various ways, corresponding to various choices of signal states of the channel. Previous work by Holevo and by Schumacher and Westmoreland relates the capacity of the channel to the properties of the signal ensemble. Here we describe some properties characterizing the ensemble that maximizes the capacity, using the relative entropy "distance" between density operators to give the results a geometric flavor.
dc.description12 pages, 1 eps figure
dc.identifierhttps://arxiv.org/abs/quant-ph/9912122
dc.identifierhttp://arxiv.org/abs/quant-ph/9912122
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/94382
dc.subjectQuantum Physics
dc.titleOptimal signal ensembles
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